| Form | Conjugation | 
|---|---|
| Plain? | 呻く | 
| Past? | 呻いた | 
| Negative? | 呻かない | 
| Volitional? | 呻こう | 
| Imperative? | 呻け | 
| Polite imperative? | 呻きなさい | 
| 〜たい? | 呻きたい | 
| Conditional (〜えば)? | 呻けば | 
| Conditional (〜たら)? | 呻いたら | 
| Potential? | 呻ける | 
| Passive? | 呻かれる | 
| Causative? | 呻かせる | 
| Prohibitive? | 呻くな | 
| 〜ます? | 呻きます |