Forget, forgot, and forgotten are all correct forms of the irregular verb to forget, but they cannot be substituted freely. Use forget as the base or present form, forgot as the simple past, and forgotten as the past participle after have, has, or had, or in some passive and adjectival constructions.
Key Facts at a Glance
- Forget is the base form: “Please forget the old password.”
- Forgets is the third-person singular present form: “She forgets names easily.”
- Forgot is the simple past form: “I forgot my umbrella yesterday.”
- Forgotten is the past participle: “They have forgotten the address.”
- After did, use forget, never forgotten: “Did you forget?”
- After have, has, or had, standard formal English uses forgotten: “He had forgotten.”
What Is the Complete Verb Chart for Forget?
The complete standard verb pattern is forget, forgot, forgotten. English forms the past and past participle differently because forget is an irregular verb; adding a regular -ed ending produces the incorrect forms forgetted and, in standard English, does not replace forgotten.
| Verb form | Grammatical role | Example | Main signal |
|---|---|---|---|
| forget | Base form | “I may forget.” | Modal or infinitive |
| forget | Present plural | “We forget quickly.” | Habit or general fact |
| forgets | Present singular | “He forgets dates.” | He, she, it |
| forgot | Simple past | “She forgot yesterday.” | Completed past event |
| forgotten | Past participle | “She has forgotten.” | Have, has, or had |
| forgetting | Present participle | “He is forgetting.” | Be plus ongoing action |
The form forget also appears after do, does, and did when those auxiliaries carry tense. The auxiliary marks the tense, so the main verb remains in its base form.
Does Forget Have a Third-Person Singular Form?
Yes. The third-person singular present form is forgets, as in “My brother forgets his keys.” The -s ending applies when the subject is he, she, it, or a singular noun in a present-simple clause.
| Subject | Correct present form | Example |
|---|---|---|
| I | forget | “I forget names.” |
| You | forget | “You forget details.” |
| We | forget | “We forget appointments.” |
| They | forget | “They forget passwords.” |
| He | forgets | “He forgets passwords.” |
| The machine | forgets | “The machine forgets settings.” |
When Is Forget Correct?
Forget is correct for the base form, present-simple habits, infinitives, imperatives, and clauses after modal verbs. The surrounding grammar determines its function, so the word forget does not always indicate present time.
Use the following patterns:
- Present habit: “I often forget names.”
- General fact: “People forget details under stress.”
- Infinitive: “I need to forget the argument.”
- Command: “Forget the old instructions.”
- Modal construction: “You should not forget your passport.”
- Future construction: “I will not forget your help.”
- Do-support: “Did you forget the meeting?”
| Structure | Correct pattern | Example |
|---|---|---|
| Present simple, I/you/we/they | Subject + forget | “They forget the route.” |
| Present simple, he/she/it | Subject + forgets | “She forgets the route.” |
| Modal | Modal + forget | “He might forget.” |
| Infinitive | to + forget | “Try to forget it.” |
| Imperative | Forget / do not forget | “Do not forget the receipt.” |
| Do-support | do/does/did + forget | “Did you forget the code?” |
A frequent mistake is choosing forgot merely because the sentence refers to a future possibility. Modal verbs such as will, might, should, and can require the base form: “I might forget,” not “I might forgot.”
When Is Forgot Correct?
Forgot is correct when one completed forgetting event belongs to a finished past time. Use it without have, has, or had in standard formal English.
Common past-time markers include yesterday, last night, two hours ago, in 2022, and when I was a child. A finished time expression normally favors the simple past.
| Time reference | Correct sentence | Why |
|---|---|---|
| Yesterday | “I forgot my keys yesterday.” | Finished past day |
| Last week | “Maya forgot the appointment last week.” | Completed past period |
| At 8:00 a.m. | “He forgot the attachment at 8:00 a.m.” | Specific past moment |
| In 2021 | “We forgot the rule in 2021.” | Finished calendar year |
| When I was young | “I forgot names when I was young.” | Completed life period |
The simple past does not require the listener to know whether the consequence remains. “I forgot my password” reports a past event; the password may still be forgotten, or the speaker may already have recovered it.
Should You Say “I Forgot” or “I Have Forgotten”?
Both can be correct, but the choice depends on the time frame and the speaker’s focus. I forgot locates the event in the past, while I have forgotten connects a past event with the present situation.
Compare these sentences:
- “I forgot my password yesterday.” The finished time is explicit.
- “I have forgotten my password.” The current consequence is important.
- “I forgot where I parked.” The speaker reports a past failure of memory.
- “I have forgotten where I parked.” The speaker still cannot remember now.
British and American English both use the present perfect, but American speakers often use the simple past more broadly in informal conversation. A specific finished time still normally requires the simple past in edited standard English: “I forgot it yesterday,” not “I have forgotten it yesterday.”
When Is Forgotten Correct?
Forgotten is correct as the past participle after have, has, or had, and it can also appear in passive constructions or before a noun as an adjective. The word cannot normally carry perfect tense by itself.
| Construction | Formula | Example |
|---|---|---|
| Present perfect | have/has + forgotten | “She has forgotten the date.” |
| Past perfect | had + forgotten | “He had forgotten the map.” |
| Perfect modal | might have + forgotten | “They might have forgotten.” |
| Passive | be + forgotten | “The warning was forgotten.” |
| Adjective | forgotten + noun | “A forgotten password caused delays.” |
The present perfect connects an earlier event to now: “The customer has forgotten the security answer.” The past perfect places forgetting before another past event: “The customer realized that she had forgotten the security answer.”
What Does Forgotten Mean as an Adjective?
As an adjective, forgotten describes something neglected, overlooked, or no longer remembered. Examples include forgotten history, a forgotten promise, an old forgotten song, and forgotten passwords.
The adjective test is useful because forgotten does not always form a tense. In “a deeply forgotten tradition,” the modifier deeply describes the degree of neglect, which supports an adjectival reading. In “The tradition was forgotten by later generations,” the phrase by later generations identifies an agent, making passive voice more likely.
English can permit both interpretations:
- “The forgotten village” describes a village people no longer remember.
- “The village was forgotten by the mapmakers” presents a passive event.
- “The village has been forgotten” uses the perfect passive construction.
How Do Forgot and Forgotten Differ?
Forgot is the simple past, while forgotten is the past participle. The simplest reliable test is to inspect the word before the verb: a finished past sentence can use forgot, but have, has, or had requires forgotten in formal standard English.
| Sentence | Correct form | Explanation |
|---|---|---|
| “I ___ the tickets yesterday.” | forgot | Simple past |
| “I have ___ the tickets.” | forgotten | Present perfect |
| “I had ___ the tickets.” | forgotten | Past perfect |
| “Did you ___ the tickets?” | forget | Did takes base form |
| “The tickets were ___.” | forgotten | Passive construction |
| “Do not ___ the tickets.” | forget | Imperative |
The forms are not interchangeable because English auxiliaries distribute grammatical work. In “I have forgotten,” have marks perfect aspect and forgotten supplies the participle. In “I forgot,” the single word forgot marks past tense.
Can You Say “I Have Forgot”?
“I have forgot” is nonstandard in formal modern English; the standard form is “I have forgotten.” The equivalent simple-past sentence is “I forgot,” especially when the sentence includes a finished time such as yesterday or last week.
| Nonstandard or incorrect form | Standard correction | Reason |
|---|---|---|
| “I have forgot my wallet.” | “I have forgotten my wallet.” | Have requires a participle |
| “She has forgot the name.” | “She has forgotten the name.” | Has requires a participle |
| “We had forgot the rule.” | “We had forgotten the rule.” | Had requires a participle |
| “I forgot my wallet yesterday.” | Correct as written | Simple past fits finished time |
| “I have forgotten my wallet yesterday.” | “I forgot my wallet yesterday.” | Present perfect conflicts with finished time |
Some regional, historical, and informal varieties use forgot as a past participle. That usage appears in older texts and some dialects, but forgotten is the safest choice for schoolwork, examinations, professional emails, and international communication.
Why Does Did Take Forget Instead of Forgotten?
Did takes the base form forget because did already marks the past tense. English normally marks tense once in this auxiliary construction, so “Did you forgotten?” contains an incorrect second tense or participle marking.
Correct patterns include:
- “Did you forget the appointment?”
- “I did forget the appointment.”
- “She did not forget the appointment.”
- “Why did he forget the address?”
The same rule applies to other verbs:
- “Did you go?” not “Did you went?”
- “Did she see?” not “Did she saw?”
- “Did they take it?” not “Did they took it?”
The negative form follows the same logic. “I did not forget” is correct, while “I did not forgot” is incorrect in standard English.
What Does Forget Mean With an Infinitive or Gerund?
Forget to do means fail to perform a future or intended action, while forget doing means fail to remember a past action or lose the memory of having performed it. The infinitive and gerund therefore create different meanings.
| Pattern | Meaning | Example |
|---|---|---|
| forget to call | Fail to make the call | “I forgot to call Ana.” |
| forget calling | Fail to remember the call | “I forgot calling Ana.” |
| remember to lock | Remember before the action | “Remember to lock the door.” |
| remember locking | Recall a completed action | “I remember locking the door.” |
| forget about the meeting | Stop remembering or overlook | “He forgot about the meeting.” |
“I forgot to send the invoice” means the invoice was not sent because the speaker failed to remember. “I forgot sending the invoice” suggests the invoice was sent, but the speaker does not remember doing it. The second construction is less common in ordinary contexts because speakers often say “I don’t remember sending it.”
How Do Questions, Negatives, and Commands Work?
Questions with do, does, or did use forget, while perfect questions use forgotten after have, has, or had. Commands also use the base form, with do not or don’t for negative instructions.
| Function | Correct sentence | Incorrect pattern to avoid |
|---|---|---|
| Present question | “Do you forget names?” | “Do you forgot names?” |
| Third-person question | “Does she forget often?” | “Does she forgets often?” |
| Past question | “Did he forget?” | “Did he forgot?” |
| Present-perfect question | “Has he forgotten?” | “Has he forgot?” |
| Negative past | “She did not forget.” | “She did not forgot.” |
| Negative command | “Do not forget.” | “Do not forgotten.” |
The auxiliary carries subject agreement as well as tense. That is why “Does she forget?” is correct, not “Does she forgets?” The -s belongs to the present verb only when no does auxiliary carries that grammatical information.
Are There Regional Differences in Forgot and Forgotten?
Forgotten is the broadly accepted past participle in contemporary formal English, while forgot as a participle occurs in some dialectal, informal, or historical varieties. Regional variation affects what people may say, but formal writing should use the standard pattern have forgotten.
Examples from formal international English include:
- “The committee has forgotten the original requirement.”
- “She had forgotten to attach the document.”
- “The incident was forgotten within a decade.”
A speaker may produce “I have forgot,” especially in a regional variety, without being unintelligible. The form remains risky in edited writing because teachers, examiners, employers, and style editors generally expect forgotten after have, has, and had.
The practical rule is simple: recognize dialect variation without copying it into formal contexts unless a quotation or character’s speech requires it.
What Is the Fastest Decision Test?
The fastest decision test is to identify the auxiliary and the time reference before choosing the verb. Use forgot for a finished past event, forgotten after have, has, or had, and forget after did, do, does, modal verbs, or to.
Use this four-step method:
- Find an auxiliary.
If the sentence contains have, has, or had, choose forgotten. If it contains did, choose forget. - Check for a modal.
After will, would, can, could, may, might, must, or should, use forget. - Look for a finished past-time marker.
Yesterday, last year, and two days ago usually point to forgot. - Check whether the word modifies a noun.
In forgotten customs or a forgotten promise, forgotten functions as an adjective.
| Signal in the sentence | Choose | Example |
|---|---|---|
| yesterday, last night, ago | forgot | “I forgot yesterday.” |
| have, has, had | forgotten | “She has forgotten.” |
| did, do, does | forget | “Did they forget?” |
| will, might, should | forget | “He might forget.” |
| to before the verb | forget | “Try to forget.” |
| noun after the form | forgotten | “Forgotten records disappeared.” |
Which Errors Should You Avoid?
The most common errors involve using two tense markers together or confusing the simple past with the participle. Correcting the auxiliary first usually solves the sentence without changing its meaning.
- Have forgot
Incorrect: “They have forgot the address.”
Correct: “They have forgotten the address.” - Did forgotten
Incorrect: “Did you forgotten the code?”
Correct: “Did you forget the code?” - Does forgets
Incorrect: “Does she forgets appointments?”
Correct: “Does she forget appointments?” - Will forgot
Incorrect: “I will forgot the details.”
Correct: “I will forget the details.” - To forgot
Incorrect: “I tried to forgot the incident.”
Correct: “I tried to forget the incident.” - Forgetted
Incorrect: “He has forgetted the rule.”
Correct: “He has forgotten the rule.”
One useful editing principle is to separate the auxiliary from the lexical verb. If did appears, remove the past form. If have appears, replace the simple past with the participle.
How Do You Use the Forms in Real Situations?
Real situations select the form through time, intention, and present consequence. A conversation about a missed action usually uses forgot, a current memory problem often uses have forgotten, and an instruction or reminder uses forget.
| Situation | Natural sentence | Form selected |
|---|---|---|
| Missed a train yesterday | “I forgot my ticket.” | forgot |
| Cannot recall a password now | “I have forgotten my password.” | forgotten |
| Giving a reminder | “Do not forget your identification.” | forget |
| Predicting a mistake | “You might forget the deadline.” | forget |
| Describing an earlier past event | “She had forgotten the key.” | forgotten |
| Describing neglected history | “The museum preserves forgotten stories.” | forgotten |
In customer support, “I forgot my password” often explains how the problem began, while “I have forgotten my password” emphasizes that access is still blocked. Both sentences can describe the same event, but their discourse focus differs.
In an academic essay, choose forgot when narrating a dated event and forgotten when forming a perfect or passive construction. Consistency matters more than trying to make every past event sound connected to the present.
What Is the Difference Between “I Forgot” and “I Had Forgotten”?
“I forgot” reports a past event without comparing it to another past event, while “I had forgotten” places the forgetting earlier than a second past event. The past perfect is necessary only when the sequence could otherwise be unclear or when the earlier timing matters.
Compare:
- “I forgot the tickets, and we returned home.”
The sequence is already clear. - “When we reached the station, I had forgotten the tickets.”
The forgetting occurred before reaching the station. - “I realized that I had forgotten the tickets.”
Realizing came after forgetting.
A common learner error is using had forgotten for every past event. Past perfect adds a relationship between two past points; it does not simply mean “a more serious past.”
What Is the Difference Between “Forgotten” and “Was Forgotten”?
“Has been forgotten” combines perfect and passive grammar, while “was forgotten” is usually simple past passive. “Forgotten” alone may be a participle or adjective, but the auxiliary determines the full construction.
| Sentence | Construction | Meaning |
|---|---|---|
| “The name was forgotten.” | Simple past passive | People forgot it in the past |
| “The name has been forgotten.” | Present perfect passive | It remains forgotten now |
| “The forgotten name appeared again.” | Adjective or reduced passive | The name is characterized as forgotten |
| “The name had been forgotten.” | Past perfect passive | It was forgotten before another past event |
The passive voice focuses on the thing affected, not the person who forgot it. Adding by can clarify the agent: “The warning was forgotten by several employees.”
Can You Use Forgotten Without Have, Has, or Had?
Yes. Forgotten can function as an adjective or appear in a passive construction with a form of be. It cannot normally function as the ordinary simple past in a sentence such as “Yesterday, I forgotten my keys.”
Correct examples include:
- “A forgotten document delayed the application.”
- “The document was forgotten in the office.”
- “The document remained forgotten for years.”
- “Forgotten passwords require a reset.”
The distinction is structural rather than purely semantic. “Forgotten” after has is a perfect participle, while “forgotten document” describes the document. Learners should inspect the entire phrase instead of treating forgotten as automatically incorrect when no form of have appears.
FAQ
Is “I forget” correct for something that happened yesterday?
No. Use “I forgot” for a completed event yesterday: “I forgot my wallet yesterday.” The present form forget can describe a habit, as in “I often forget my wallet,” but a specific completed event with yesterday normally requires the simple past.
Is “I have forgotten” more formal than “I forgot”?
Neither form is automatically more formal. I have forgotten emphasizes a present consequence, while I forgot identifies a past event. Formality depends on context, vocabulary, and sentence structure, not on choosing the present perfect.
What is the negative form of “forgot”?
The negative simple past is “did not forget” or “didn’t forget.” Do not say “did not forgot,” because did already marks the past tense. For the present perfect, use “have not forgotten” or “has not forgotten.”
What is the past participle of “forget”?
The standard past participle is forgotten. The complete principal-parts sequence is forget, forgot, forgotten. Use forgotten after have, has, or had, as in “She has forgotten the appointment.”
Is “I forgot to call” different from “I forgot calling”?
Yes. I forgot to call means the call was not made because you failed to remember. I forgot calling means the call was made, but you do not remember making it. The infinitive describes an omitted action; the gerund refers to a completed action.
Which form should you use in a grammar exam?
Use forget after did, do, does, modal verbs, and to; use forgot for an unassisted simple past; and use forgotten after have, has, or had. Then check whether a finished-time expression conflicts with the present perfect.
The Bottom Line
The answer to which is correct forget forgot forgotten is that all three forms are correct in different grammatical environments. Choose forget after auxiliaries such as did and modal verbs, forgot for a completed simple-past event, and forgotten after have, has, or had, or when it functions as a passive participle or adjective.
