What’s the past tense of “forget”?
Before we forget the topic of today’s post: what’s the correct past tense of the verb, to forget? If you have forgotten, stick around to refresh your memory.
He forgot his lunch at home.
They have forgotten their passports.
He has forgot his lunch at home.
They forgotten their passports.
Forget, forgot, forgotten
To forget, defined by Collins Dictionary, is “to not remember to do something that you ought to do, or to bring or buy something that you ought to bring or buy”. For example, you might say, ‘I was in such a rush that I had forgotten to bring sunscreen to the beach’ (which is in the past perfect tense).
Verb forms of forget
| present | past | future | |
| simple | I forget | I forgot | I will forget |
| continuous | I am forgetting | I was forgetting | I will be forgetting |
| perfect | I have forgotten | I had forgotten | I will have forgotten |
| perfect continuous | I have been forgetting | I had been forgetting | I will have been forgetting |
Forgot or forgotten
Take a look at these sentences which shows the past tense vs. the past participle form of forget:
Simple past tense: She forgot her friend’s birthday and felt terrible about it.
Past perfect tense: She had forgotten to pack her toothbrush for the trip.
- Perfect tenses use the past participle form of the verb (e.g., forgotten). To create the past perfect or present perfect tense, we pair the auxiliaries had/have with the past participle verb form, e.g., had forgotten/have forgotten.
- The simple past tense just uses the simple past verb conjugation, without any additional verbs required.
“forget’s” past tenses, link “forgot” to simple past events and “forgotten” to completed actions needing “have” or “had” before it.
Examples of forget in the present tense
I am forgetting my worries and enjoying the present moment. (Present participle)
She is always forgetting her appointments. (Present participle)
They are forgetting about their responsibilities. (Present participle)
I forget to buy milk every time I go to the store.
She often forgets her keys at home. (Third-person present singular)
They forget to turn off the lights before leaving.
Examples of forgot in the past tense
I forgot to pick up the groceries on my way home from work.
She forgot her friend’s birthday and felt terrible about it.
They forgot to set their alarm clock and overslept this morning.
She forgot her umbrella at the restaurant last night.
We forgot to lock the door when we left for vacation.
Examples of forgotten as a participle (in sentences)
The old photo album had been forgotten in the attic for years.
She had forgotten to pack her toothbrush for the trip.
They had completely forgotten about their anniversary until their friends reminded them.
The important meeting had been forgotten amidst the chaos of the day.
He realized he had forgotten his wallet at home when he reached the cashier.
Words that are similar to forget
- disremember
- overlook
- neglect
- leave behind
- fail to recall
- let slip
- lose track of
- ignore
- neglect
- forsake
Practice questions: forms of ‘forget’
| Questions | Answer options: |
|---|---|
| 1. True or false: “forgot” has both a regular and irregular verb form. | a. true b. false |
| 2. The sentence is in what tense: I forget to buy milk every time I go to the store. | a. past tense b. present perfect c. present |
| 3. Select the correct tense the sentence is in: I forgot to call him back yesterday. | a. past simple b. present perfect c. present perfect continuous |
| 4. The sentence is in what tense: I had forgotten where I put my glasses. | a. simple past b. present continuous c. past perfect |
| 5. The sentence is in which tense: I’ve forgotten my keys at home. | a. present perfect b. present continuous c. past continuous |
| 6. Select the tense the sentence is in: I am forgetting my worries and enjoying the present moment. | a. present perfect b. present continuous c. simple past |
Answers
- b
- c
- a
- c
- a
- b
Work Sheet
Which sentence correctly uses the simple past tense of ‘forget’?
In the sentence “They have forgotten their passports,” ‘forgotten’ is used as the:
Which auxiliary verbs typically precede the past participle ‘forgotten’ in perfect tenses?
According to the post, the simple past form of ‘forget’ is:
Which sentence demonstrates an incorrect usage mentioned in the post?
I ____ to buy milk every time I go to the store.
He has ____ his phone again.
She ____ her friend’s birthday and felt terrible.
They had ____ to set their alarm clock.
We have ____ our passwords for the website.
Frequently Asked Questions
What is the simple past tense of forget?
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What is the past participle of forget?
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When should I use “forgot”?
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When should I use “forgotten”?
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Is “has forgot” correct according to the post?
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Yash, D. "What’s the Past Tense of Forget? Forgot, Forgotten?." Grammarflex, Jun 19, 2025, https://www.grammarflex.com/which-is-correct-forget-forgot-forgotten/.
Sources
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Harper, Douglas. “Etymology of forget.” Online Etymology Dictionary, https://www.etymonline.com/word/forget. Accessed 30 May, 2023.
