| Form | Conjugation | 
|---|---|
| Plain? | 貫く | 
| Past? | 貫いた | 
| Negative? | 貫かない | 
| Volitional? | 貫こう | 
| Imperative? | 貫け | 
| Polite imperative? | 貫きなさい | 
| 〜たい? | 貫きたい | 
| Conditional (〜えば)? | 貫けば | 
| Conditional (〜たら)? | 貫いたら | 
| Potential? | 貫ける | 
| Passive? | 貫かれる | 
| Causative? | 貫かせる | 
| Prohibitive? | 貫くな | 
| 〜ます? | 貫きます |