| Infinitive | Participle | Gerund | Adjective |
|---|---|---|---|
| ice | iced | icing | iceable |
| impecc | impecced | impeccing | impeccable |
| imposs | impossed | impossing | impossible |
| in | inned | inning | innable |
| inadmit | inadmitted | inadmitting | inadmissible |
| indomit | indomited | indomiting | indomitable |
| inexcuse | inexcused | inexcusing | inexcusable |
| inkle | inkled | inkling | inklable |
| interleave | interleft | interleaving | interleavable |