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Irregular Verbs in Simple Past
Irregular verbs are an important aspect of the English language, and mastering their correct forms can greatly improve your communication skills. Some of the most common irregular verbs include "go," "eat," "see," and "do." While their past tense and past participle forms may not follow regular patterns, memorizing them can help you to use them correctly in speech and writing.
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About this topic
Irregular verbs in the simple past — at a glance
Most English verbs form the simple past by adding -ed. Irregular verbs do not: they have their own past form that has to be learned, such as go – went or see – saw. There are only a few hundred of them, and the ones you meet first are the most common verbs in the language.
One form for every person
An irregular past form never changes. There is no -s in the third person and no -ed anywhere, so the same word serves I, you, he, she, it, we and they.
- I went to Berlin last year.first person
- She went to Berlin last year.no -s
- They went to Berlin last year.same form again
- If you can add -ed and it sounds right, the verb is regular. Irregular forms have to be memorised – there is no rule that produces them.
Questions and negatives lose the irregular form
Questions and negatives are built with did and did not / didn't. Those already carry the past, so the main verb goes back to its base form. This is the mistake learners make most often with irregular verbs.
- Did you go to Berlin?go, not went
- I didn't go to Berlin.go, not went
- She didn't see the email.see, not saw
- Never write “did you went” or “didn't saw”. The past is in did; the verb after it stays in the base form.
The verb be is the exception
be is the only English verb with two past forms, and it does not use did in questions and negatives – it moves to the front on its own.
- I was at home. / He was at home.was: I, he, she, it
- We were at home. / You were late.were: you, we, they
- Was she at home? — She wasn't at home.no did
Patterns that make them easier to learn
Irregular verbs are not random. Grouping them by the way they change turns a long list into a handful of small ones.
- cut – cut, put – put, let – letno change at all
- sing – sang, drink – drank, swim – swami becomes a
- buy – bought, teach – taught, think – thoughtending in -ought / -aught
- go – went, be – was/werea different word entirely
- The past form and the past participle are not always the same: go – went – gone, see – saw – seen. The simple past uses the middle one.
Exercises in this topic
- Exercise 2Premium—PDF
- Exercise 3Premium—PDF
- Exercise 4Premium—