A linking verb connects a sentence’s subject with a subject complement that identifies or describes it. Common linking verbs include forms of be, become, seem, appear, remain, feel, look, smell, sound, taste, grow, stay, turn, and prove. The verb expresses a state or change of state rather than an action directed at an object.
Key facts at a glance
- A linking verb connects the subject to a predicate adjective or predicate nominative.
- Forms of be, become, and seem are the clearest always-linking verbs.
- Feel, look, smell, sound, and taste can function as linking or action verbs.
- A linking verb normally takes an adjective when the complement describes the subject.
- A linking verb can express identity, condition, appearance, continuation, or transition.
- The replacement test works often, but meaning and sentence structure must decide the result.
What Is a Linking Verb?
A linking verb joins the subject to information that completes the subject’s meaning. In The metal is hot, the verb is connects metal with hot; the adjective does not receive an action, because hot describes the subject.
The complement after a linking verb is called a subject complement. A subject complement has two main forms:
- A predicate adjective, which describes the subject: The room became quiet.
- A predicate nominative, also called a predicate noun, which renames the subject: Maya is the captain.
The basic structure is:
Subject + linking verb + subject complement
Linking verbs often function like an equal sign:
The soup smells delicious.
Soup = delicious
The equal-sign idea helps with basic examples, but it is not a complete grammatical definition. The child seems tired expresses an appearance or judgment, not a literal mathematical equality. Meaning, complement type, and verb behavior must be considered together.
What does a linking verb connect?
A linking verb connects a grammatical subject with a description, identity, category, or resulting state. The complement refers back to the subject rather than receiving an action from the verb.
| Sentence | Linking verb | Subject complement | Complement type |
|---|---|---|---|
| The glass is fragile. | is | fragile | Predicate adjective |
| Jordan became a doctor. | became | a doctor | Predicate nominative |
| The plan seems reasonable. | seems | reasonable | Predicate adjective |
| The winners were them. | were | them | Predicate pronoun |
The complement may contain more than one word. In The children remained in the library, in the library is a location complement, not a predicate adjective. Some grammar traditions analyze such complements differently, so the safest identification depends on the verb’s meaning and the relationship between the subject and following phrase.
What Belongs in a List of Linking Verbs?
A practical list of linking verbs contains three groups: verbs that are consistently linking, sensory verbs that alternate between linking and action meanings, and state or change-of-state verbs that link subjects to conditions or results.
Which linking verbs are always linking verbs?
The most dependable linking verbs are forms of be, plus become and seem. These verbs do not normally take a direct object in their linking use.
| Base verb | Common forms | Linking example | Complement |
|---|---|---|---|
| be | am, is, are, was, were, be, being, been | The results are clear. | clear |
| become | become, becomes, became, becoming | Lina became an engineer. | an engineer |
| seem | seem, seems, seemed, seeming | The answer seems correct. | correct |
| remain | remain, remains, remained, remaining | The door remained open. | open |
| appear | appear, appears, appeared, appearing | The symptoms appear mild. | mild |
Be is irregular and carries tense and agreement:
- Present: I am, you are, she is, we are, they are
- Past: I was, you were, she was, we were, they were
- Nonfinite forms: be, being, been
Become usually indicates a transition. Seem indicates appearance, inference, or limited certainty. Remain indicates continuation, while appear can indicate either seeming or physical arrival, depending on context.
Which verbs express change or continuing state?
Change-of-state verbs connect a subject with a new condition. Common examples include grow, turn, stay, remain, prove, and get.
| Verb | State or transition | Example | Result |
|---|---|---|---|
| grow | gradual change | The child grew restless. | restless |
| turn | visible or sudden change | The leaves turned yellow. | yellow |
| stay | continued condition | The milk stayed fresh. | fresh |
| prove | demonstrated result | The method proved effective. | effective |
| get | informal change | The sky got darker. | darker |
These verbs are not interchangeable. Grow tired suggests gradual development; turn cold often suggests a noticeable shift; stay calm describes continuation; prove useful reports an established result. Get is common in conversation but can sound informal in formal analytical prose.
Some verbs in extended lists require caution. Go can link a subject to an undesirable change in phrases such as The bread went stale, while fall links in She fell silent. The category is open rather than a fixed list of exactly 30 verbs. English grammar references classify borderline verbs differently, and no reliable universal statistic establishes that forms of be account for more than 80 percent of all linking-verb use.
When Do Sensory Verbs Link?
Sensory verbs function as linking verbs when the subject has a quality that someone perceives. The same verbs function as action verbs when the subject actively uses a sense or directs an action toward an object.
| Verb | Linking use | Action use | Diagnostic difference |
|---|---|---|---|
| look | The patient looks tired. | The patient looked at the chart. | Tired describes; at the chart shows directed attention |
| smell | The bread smells fresh. | Priya smelled the bread. | Fresh describes; the bread receives the action |
| sound | The proposal sounds practical. | The alarm sounded the siren. | Practical describes; the siren is an object |
| taste | The sauce tastes bitter. | The chef tasted the sauce. | Bitter describes; the sauce receives tasting |
| feel | The fabric feels smooth. | Omar felt the fabric. | Smooth describes; the fabric receives touching |
The sentence The dog smells the food uses smells as an action verb because the dog actively detects an object. In The food smells good, smells links food to good.
The same distinction applies to look. In The building looks old, old describes the building. In The architect looked at the building, the prepositional phrase identifies where the architect directed attention.
Can a sensory verb take an adverb?
A sensory verb takes an adjective when the adjective describes the subject. The soup tastes salty, the blanket feels soft, and the singer sounds nervous are standard linking constructions.
An adverb may be correct when the verb expresses an action:
- She looked carefully at the contract.
- He smelled the chemical cautiously.
- The chef tasted the sauce professionally.
The popular correction I feel badly requires context. In the common meaning “I am emotionally unwell,” the standard form is I feel bad, because bad describes the subject. I feel badly can be grammatical when badly modifies an action of feeling, although that interpretation is uncommon and often sounds ambiguous.
How Can You Identify a Linking Verb?
Identify a linking verb by locating the verb, determining whether the subject performs an action, and testing whether the following word describes or renames the subject. The replacement test helps, but it should confirm the sentence’s meaning rather than override it.
Use these five steps:
- Locate the complete verb phrase.
In The flowers have become fragrant, the linking verb is have become, not only become. - Find what follows the verb.
Look for an adjective, noun, pronoun, or complement that refers back to the subject. - Ask whether the subject performs an action.
In The student opened the door, the student performs an action and door receives it. - Try a form of be.
Change The water feels cold to The water is cold. The meaning remains logical, so feels is linking. - Check the relationship, not merely the replacement.
He feels the cold water becomes He is the cold water, which fails because water is an object, not a description of he.
A second test uses subject agreement with the complement. In The problem is the delays, both problem and delays are noun phrases connected by identity. In The problem is difficult, difficult describes the problem.
The replacement test can mislead with verbs such as appear, remain, and prove, because replacing them with be may preserve only part of their meaning. The results proved reliable means testing established reliability, whereas the results were reliable states the condition directly.
What are the most useful identification signals?
The strongest signal is a complement that describes or renames the subject. A direct object, by contrast, represents a separate entity affected by an action.
| Sentence | Verb role | Following element | Reason |
|---|---|---|---|
| The engine became noisy. | Linking | adjective | Noisy describes engine |
| The mechanic tested the engine. | Action | noun object | Engine receives testing |
| The explanation seems a guess. | Linking | noun phrase | Guess renames explanation |
| The witness looked outside. | Action or intransitive | adverb | Outside gives direction |
| The witness looked nervous. | Linking | adjective | Nervous describes witness |
How Do Linking and Action Verbs Differ?
Linking verbs express a relationship between a subject and its state or identity, whereas action verbs express something the subject does, senses, changes, or directs toward an object. The grammatical difference is more reliable than the idea that action verbs always describe physical movement.
| Feature | Linking verb | Action verb | Example |
|---|---|---|---|
| Main function | Connects subject to complement | Expresses an activity or event | The sky grew dark versus The plant grew roots |
| Following element | Adjective or noun complement | Direct object, adverb, or clause | She felt calm versus She felt the texture |
| Subject relation | Subject equals or becomes complement | Subject performs or experiences action | The room remained quiet |
| Typical question | What is the subject like? | What did the subject do? | The fabric feels rough versus He felt fabric |
| Object test | Usually no direct object | May take direct object | The plan seems sound versus They sound the bell |
The contrast is semantic, not merely positional. Mental verbs such as believe, remember, and prefer express actions or processes even though they are not physical movements. A sentence can also contain both types: The manager became concerned and reviewed the figures uses became as linking and reviewed as action.
Are linking verbs the same as helping verbs?
Linking verbs are not the same as helping verbs. A linking verb connects a subject to a complement, while a helping verb combines with a main verb to express tense, aspect, voice, mood, or emphasis.
- Linking be: The machine is quiet.
- Helping be: The machine is running.
- Linking have is not standard in the same sense: The machine has a fault uses has as a lexical verb meaning possesses.
- Helping have: The machine has stopped.
The form is is linking in the first example because quiet describes machine. It is auxiliary in the second because running is the main verb’s present participle. Context determines the grammatical function.
Which Complement Follows a Linking Verb?
A linking verb can be followed by a predicate adjective, predicate noun, predicate pronoun, or certain prepositional and adverbial complements. The complement must complete the subject’s meaning rather than represent an object acted upon by the subject.
| Complement type | Example | What it does |
|---|---|---|
| Predicate adjective | The solution is stable. | Describes solution |
| Predicate noun | Ada became a leader. | Renames Ada |
| Predicate pronoun | The caller was she. | Identifies caller |
| Adjective phrase | The material seems highly durable. | Gives an expanded description |
| Prepositional complement | The keys are on the desk. | Locates keys |
Traditional formal grammar often prefers a subject pronoun after be, as in It was I. Contemporary standard English commonly uses an object pronoun in ordinary speech, as in It was me. Register and audience determine which form sounds appropriate.
A linking verb can also connect the subject to a clause:
The problem is that the data are incomplete.
Here, that the data are incomplete identifies the problem. The linking relationship remains even though the complement is a clause rather than a single adjective or noun.
Why do linking verbs take adjectives?
Linking verbs take adjectives because adjectives describe the subject’s condition, appearance, or resulting state. The child feels tired means the child is tired, while the child feels tiredly does not normally express a natural standard meaning.
This rule applies to common sensory constructions:
- The flowers smell sweet, not usually smell sweetly
- The music sounds strange, not sounds strangely
- The surface feels rough, not feels roughly
- The stew tastes salty, not tastes saltily
- The actor looks nervous, not looks nervously
An adverb becomes correct when the verb changes meaning. The actor looked nervously at the exit describes the manner of looking, not the actor’s appearance. The word nervously modifies the action and does not function as a subject complement.
What Edge Cases Cause Confusion?
The most common linking-verb errors involve passive voice, phrasal verbs, objects that resemble complements, and verbs whose meanings change with context. A reliable analysis identifies the complete verb phrase and asks what grammatical role the following words perform.
Passive voice and linking be
The verb be is a linking verb when followed by a subject complement:
The window is clean.
The verb be is an auxiliary in the passive voice:
The window is cleaned every morning.
In the passive sentence, cleaned is a past participle forming the passive construction. Is does not connect the window to an adjective. The sentence means someone cleans the window, even when the agent is omitted.
The adjective broken can create ambiguity:
- The vase is broken can mean the vase is in a broken state.
- The vase is broken by the movers is passive voice.
The following phrase and intended meaning resolve the analysis.
Verbs that look like linking verbs
Some verbs connect subjects to complements only in particular expressions:
- She fell silent.
- The negotiations went wrong.
- The fruit became ripe.
- The evidence grew weaker.
- The proposal came true.
Other uses are action or event verbs:
- She fell from the ladder.
- The negotiations went to Geneva.
- The farmer grew tomatoes.
- The company came to the meeting.
The verb grow is especially easy to misclassify. The child grew sleepy links child to sleepy. The child grew flowers uses flowers as a direct object, so grew means cultivated.
Predicate adjective versus adverb
Writers often choose an adverb because the word follows a verb, but position alone does not determine part of speech. The complement’s relationship to the subject matters.
| Intended meaning | Preferred sentence | Why |
|---|---|---|
| Subject is healthy | The patient looks healthy. | Healthy describes patient |
| Subject uses vision carefully | The patient looked carefully. | Carefully modifies looking |
| Food has a pleasant flavor | The curry tastes good. | Good describes curry |
| Person samples food successfully | The chef tasted the curry well. | Well modifies tasting |
| Fabric has a rough texture | The cloth feels rough. | Rough describes cloth |
How Should Writers Use Linking Verbs?
Writers should use linking verbs when they need to define, classify, describe, evaluate, or report a state precisely. Linking verbs become weak only when they replace a more informative action or process that the reader needs to see.
Academic and professional writing often needs them:
- The primary risk is contamination.
- The findings appear consistent with the hypothesis.
- The revised procedure remains compliant with ISO 9001 requirements.
- The sample became unstable after 48 hours.
- The proposed explanation seems plausible but unverified.
These sentences establish relationships that action verbs cannot always express cleanly. In a definition, A catalyst is a substance that changes reaction rate is more precise than an artificial action construction.
Fiction benefits from selective substitution. She was angry states an emotion efficiently, while She crushed the paper in her fist supplies observable behavior. The second sentence does not always replace the first, because physical behavior can suggest anger without proving it.
A practical editing rule is to replace a linking verb only when the replacement adds evidence, movement, causation, or sensory detail. Do not remove is, seems, or became merely to avoid a grammatical category.
What are common practitioner mistakes?
Mistake 1: Treating every be verb as linking.
In They are studying, are is an auxiliary. In They are prepared, are links the subject to an adjective or participial adjective.
Mistake 2: Calling every verb before an adjective linking.
In She danced gracefully, gracefully is an adverb modifying an action. The presence of a descriptive word does not prove a linking construction.
Mistake 3: Assuming linking verbs make sentences passive.
The report is accurate is active, stative description. Passive voice requires an auxiliary plus a past participle, as in The report was approved.
Mistake 4: Applying the equal-sign test mechanically.
The theory proved false cannot be reduced to the theory was false without losing the meaning that evidence established falsity.
Mistake 5: Editing out necessary identity statements.
Definitions, classifications, and results often require forms of be. Replacing The sample is contaminated with The sample contains contamination changes the claim and may reduce precision.
How Many Linking Verbs Are There?
English has no single authoritative list with a fixed number of linking verbs. Most classroom lists contain approximately 20-30 common items, while broader dictionaries and grammar references include additional change-of-state and result verbs whose linking status depends on context.
A compact working inventory includes:
- Be: am, is, are, was, were, be, being, been
- Core verbs: become, seem, appear, remain
- Sensory verbs: feel, look, smell, sound, taste
- State and change verbs: stay, grow, turn, prove, get, go, fall, come
The number changes because grammar categories describe usage, not a closed vocabulary class. Stay commonly links in Stay calm, while stay in Stay at home expresses location or continuation with a prepositional complement. Prove links in The claim proved difficult, but it may function differently in constructions such as The lawyer proved the allegation.
Claims that native speakers universally master linking verbs by age three or four, or that second-language learners reliably master the distinction within one or two weeks, lack a dependable universal timetable. Learning depends on language background, instruction, exposure, and whether the target is recognition, production, or advanced grammatical analysis.
FAQ About Linking Verbs
Is “have” a linking verb?
Have is usually a lexical verb meaning possession, experience, or obligation, as in They have a new car and She had a headache. It is also a helping verb in They have finished. Some grammar descriptions treat possession verbs as copular in limited patterns, but elementary lists generally exclude have from core linking verbs.
Is “feel” always a linking verb?
Feel is not always a linking verb. The blanket feels soft uses feels as a linking verb because soft describes the blanket. Mina felt the blanket uses felt as an action verb because the blanket is the object receiving the tactile action.
Is “look” a linking verb in every sentence?
Look is linking when it means “appear,” as in The patient looks pale. It is an action or directional verb in The patient looked at the monitor and Look carefully. The following adjective, object, or adverbial phrase helps establish the intended meaning.
Can a linking verb be followed by a noun?
A linking verb can be followed by a noun or noun phrase that renames the subject. Marcus became the team leader and That building is a museum contain predicate nominatives. The noun must identify the subject, rather than represent an object that receives an action.
Are linking verbs weak in formal writing?
Linking verbs are not inherently weak in formal writing. They are often the most accurate choice for definitions, classifications, conditions, and conclusions, such as The treatment appears effective. Replace one only when a specific action, cause, measurement, or observable behavior adds information the original state description lacks.
What is the fastest test for a linking verb?
The fastest useful test is to ask whether the word after the verb describes or renames the subject. Then try a form of be without changing the basic meaning. If the sentence instead contains a direct object that receives an action, the verb is functioning as an action verb.
The Bottom Line
A linking verb connects a subject with a description, identity, location, or resulting state. The core list includes forms of be, become, seem, appear, remain, feel, look, smell, sound, taste, grow, stay, turn, and prove, but many verbs change category according to context.
Use the subject-complement relationship as the primary test. Use the replacement with be as confirmation, then check for a direct object, an auxiliary construction, passive voice, and the exact meaning of the verb. The most accurate list of linking verbs is therefore a categorized guide to common forms, not a rigid inventory with one universally correct number.
