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Irregular verb

The verb to forget

forget → forgot → forgotten

B1Meaning: to not remember something · Type: irregular · Frequency: Top 100 English verbs

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Key points to remember

  • Present Simple: I/you/we/they forget · he/she/it forgets
  • Past Simple: forgot
  • Past participle: forgotten
  • -ing form: forgetting (double t)

Conjugation of the verb to forget

Present Simple

Iforget
Youforget
He / She / Itforgets
Weforget
You (pl.)forget
Theyforget

Past Simple

Iforgot
Youforgot
He / She / Itforgot
Weforgot
You (pl.)forgot
Theyforgot

How to use to forget

1. Forgetting something

  • I forgot my password.
  • Don't forget your umbrella.

2. Forget to do

Forget + to + verb: to not do something that you planned to do.

  • I forgot to call you.
  • Don't forget to send the email.

Common mistakes to avoid

1. I forgot my keys at home ❌

You forget information (in your head). You leave a thing somewhere. With a place, say I left my keys at home. I forgot my keys, with no place, is fine.

2. I have forgot ❌

The standard past participle is forgotten, in British and American English. I have forgot is only heard in informal American English. To be safe, use forgotten.

What's next?

You can conjugate to forget. Now say it out loud.

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Related pages: forget

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Frequently asked questions

What is the past simple of forget?+

The Past Simple of forget is forgot. The past participle is forgotten, in both British and American English. Forget → forgot → forgotten.

Is it forgot or forgotten?+

Forgot is the Past Simple: I forgot his birthday yesterday. Forgotten is the past participle, standard in British and American English: I have forgotten his name. I have forgot is only heard in informal American English.

What is the difference between forget and leave?+

Forget is about your memory: I forgot her name. Leave is about a thing and a place: I left my bag at school.

How do you use don't forget?+

Don't forget is a negative imperative (an order or a piece of advice). Don't forget to call me! Don't forget your keys!

Is it forgot or forgeted?+

Forget is an irregular verb. Its Past Simple is forgot, and its past participle is forgotten. Never say forgeted.

Updated on 12 November 2026 by the Big Challenge teaching team. Every year, more than 500,000 students across Europe take part in our English contest, created in 1999. Our teaching approach →