| Form | Conjugation | 
|---|---|
| Plain? | 腹が空く | 
| Past? | 腹が空いた | 
| Negative? | 腹が空かない | 
| Volitional? | 腹が空こう | 
| Imperative? | 腹が空け | 
| Polite imperative? | 腹が空きなさい | 
| 〜たい? | 腹が空きたい | 
| Conditional (〜えば)? | 腹が空けば | 
| Conditional (〜たら)? | 腹が空いたら | 
| Potential? | 腹が空ける | 
| Passive? | 腹が空かれる | 
| Causative? | 腹が空かせる | 
| Prohibitive? | 腹が空くな | 
| 〜ます? | 腹が空きます |