| Form | Conjugation | 
|---|---|
| Plain? | 轟く | 
| Past? | 轟いた | 
| Negative? | 轟かない | 
| Volitional? | 轟こう | 
| Imperative? | 轟け | 
| Polite imperative? | 轟きなさい | 
| 〜たい? | 轟きたい | 
| Conditional (〜えば)? | 轟けば | 
| Conditional (〜たら)? | 轟いたら | 
| Potential? | 轟ける | 
| Passive? | 轟かれる | 
| Causative? | 轟かせる | 
| Prohibitive? | 轟くな | 
| 〜ます? | 轟きます |