An irregular verb is a verb that does not end with ed to show past tense.
Some irregular verbs show past tense by using a different form of the main verb with have, has, or had.
| Present | Past | Past with Helping Verb |
| do, does | did | (have, has, had) done |

Jerry has done all of his homework.
| Present | Past | Past with Helping Verb |
| come, comes | came | (have, has, had) come |

My uncle came to visit me from the desert.
| Present | Past | Past with Helping Verb |
| run, runs | ran | (have, has, had) run |

We ran in the snow during the winter.
| Present | Past | Past with Helping Verb |
| go, goes | went | (have, has, had) gone |

He has gone to the Lego exhibit.
Other irregular verbs are:
| blow | fall | fly | dig | grow | ride | write | give | speak |
| blew | fell | flew | dug | grew | rode | wrote | gave | spoke |