List of irregular verbs whose past tense and past participle have two types of forms:
| Infinitive | Past Tense | Past Participle |
| Burn | Burned, Burnt | Burned, Burnt |
| Dream | Dreamed, Dreamt | Dreamed, Dreamt |
| Dwell | Dwelled, Dwelt | Dwelled, Dwelt |
| Hang | Hanged, Hung | Hanged, Hung |
| Kneel | Kneeled, Knelt | Kneeled, Knelt |
| Lean | Leaned, Leant | Leaned, Leant |
| Leap | Leaped, Leapt | Leaped, Leapt |
| Learn | Learned, Learnt | Learned, Learnt |
| Light | Lighted, Lit | Lighted, Lit |
| Smell | Smelled, Smelt | Smelled, Smelt |
| Speed | Speeded, Sped | Speeded, Sped |
| Spill | Spilled, Spilt | Spilled, Spilt |
| Spoil | Spoiled, Spoilt | Spoiled, Spoilt |
| Weave | Weaved, Woven | Weaved, Woven |
| Wet | Wetted, Wet | Wetted, Wet |
