Irregular verbs
1. Some verbs have the same past and past participle.
| present | past | past participle |
| bring | brought | (has, have, had) brought |
| catch | caught | (has, have, had) caught |
| find | found | (has, have, had) found |
| say | said | (has, have, had) said |
| think | thought | (has, have, had) thought |
| teach | taught | (has, have, had) taught |
2. Some form the past participle by adding -n to the past.
| present | past | past participle |
| break | broke | (has, have, had) broken |
| choose | chose | (has, have, had) chosen |
| freeze | froze | (has, have, had) frozen |
| speak | spoke | (has, have, had) spoken |
| drive | drove | (has, have, had) driven |
| draw | drew | (has, have, had) drawn |
| know | knew | (has, have, had) known |
| rise | rose | (has, have, had) risen |
| steal | stole | (has, have, had) stolen |
3. Some change one vowel in the past and in the past participle.
| present | past | past participle |
| drink | drank | (has, have, had) drunk |
| ring | rang | (has, have, had) rung |
| sing | sang | (has, have, had) sung |
| swim | swam | (has, have, had) swum |
| begin | began | (has, have, had) begun |
4. The forms of some common irregular verbs appear below.
| present | past | past participle |
| come | came | (has, have, had) come |
| do | did | (has, have, had) done |
| eat | ate | (has, have, had) eaten |
| fall | fell | (has, have, had) fallen |
| fly | flew | (has, have, had) flown |
| give | gave | (has, have, had) given |
| go | went | (has, have, had) gone |
| grow | grew | (has, have, had) grown |
| ride | rode | (has, have, had) ridden |
| run | ran | (has, have, had) run |
| see | saw | (has, have, had) seen |
| take | took | (has, have, had) taken |
| wear | wore | (has, have, had) worn |
| write | wrote | (has, have, had) written |
| hide | hid | (has, have, had) hidden |
| tear | tore | (has, have, had) torn |