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Irregular verbs
When the past simple and past participle do not end in -ed (for example, I saw / I have seen), the verb is irregular.
With some irregular verbs, all three forms (infinitive, past simple and past participle) are the same. For example, hit:
- Don't hit me. (infinitive)
- Somebody hit me as I came into the room. (past simple)
- I've never hit anybody in my life. (past participle - present perfect)
- George was hit on the head by a stone. (past participle - passive)
With other irregular verbs, the past simple is the same as the past participle (but different from the infinitive). For example, tell → told :
- Can you tell me what to do? (infinitive)
- She told me to come back the next day. (past simple)
- Have you told any body about your new job? (past participle - present perfect)
- I was told to come back the next day. (past participle - passive)
With other irregular verbs, all three forms are different. For example, wake → woke/woken:
- I'll wake you up. (infinitive)
- I woke up in the middle of the night. (past simple)
- The baby has woken up. (past participle - present perfect)
- I was woken up by a loud noise. (past participle - passive)
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