Irregular verbs in English don’t follow the standard rules for forming past tenses. Here are some examples of irregular past-tense verbs:

1. Go – went
2. Eat – ate
3. Come – came
4. See – saw
5. Take – took
6. Do – did
7. Have – had
8. Make – made
9. Leave – left
10. Break – broke

These are just a few examples. There are many more irregular verbs in English, and they usually have unique past tense forms that need to be memorized individually.