| Form | Conjugation | 
|---|---|
| Plain? | 難ずる | 
| Past? | 難じた | 
| Negative? | 難じない | 
| Volitional? | 難じよう | 
| Imperative? | 難じろ | 
| Imperative (written)? | 難ぜよ | 
| Polite imperative? | 難じなさい | 
| 〜たい? | 難じたい | 
| Conditional (〜えば)? | 難ずれば | 
| Conditional (〜たら)? | 難じたら | 
| Potential? | 難じれる | 
| Passive? | 難じられる | 
| Causative? | 難じさせる | 
| Prohibitive? | 難ずるな | 
| 〜ます? | 難じます |