| Form | Conjugation | 
|---|---|
| Plain? | ふく | 
| Past? | ふいた | 
| Negative? | ふかない | 
| Volitional? | ふこう | 
| Imperative? | ふけ | 
| Polite imperative? | ふきなさい | 
| 〜たい? | ふきたい | 
| Conditional (〜えば)? | ふけば | 
| Conditional (〜たら)? | ふいたら | 
| Potential? | ふける | 
| Passive? | ふかれる | 
| Causative? | ふかせる | 
| Prohibitive? | ふくな | 
| 〜ます? | ふきます |