Irregular Verbs in English

Catch is an irregular verb with the past simple form caught.

The past participle of the irregular verb write is written.

The past simple form of the irregular verb fly is flew.

The past participle of send is sent, which is the same as its past simple form.

The past simple form of teach is taught.

The past simple form of ring is rang.

Go is a highly irregular verb; its past simple form is went.

The past participle of eat is eaten.

The past simple form of sleep is slept.

The past participle of see is seen.