Infinitive Simple Past Past Participle
| fall | fell | fallen |
| feed | fed | fed |
| feel | felt | felt |
| fight | fought | fought |
| find | found | found |
| fit (tailor, change size) | fitted / fit | fitted / fit |
| fit (be right size) | fit / fitted | fit / fitted |
| flee | fled | fled |
| fling | flung | flung |
| fly | flew | flown |
| forbid | forbade | forbidden |
| forecast | forecast | forecast |
| forego (also forgo) | forewent | foregone |
| foresee | foresaw | foreseen |
| foretell | foretold | foretold |
| forget | forgot | forgotten / forgot |
| forgive | forgave | forgiven |
| forsake | forsook | forsaken |
| freeze | froze | frozen |
| frostbite | frostbit | frostbitten |