| Form | Conjugation | 
|---|---|
| Plain? | 眼が冴える | 
| Past? | 眼が冴えた | 
| Negative? | 眼が冴えない | 
| Volitional? | 眼が冴えよう | 
| Imperative? | 眼が冴えろ | 
| Polite imperative? | 眼が冴えなさい | 
| 〜たい? | 眼が冴えたい | 
| Conditional (〜えば)? | 眼が冴えれば | 
| Conditional (〜たら)? | 眼が冴えたら | 
| Potential? | 眼が冴えれる | 
| Passive? | 眼が冴えられる | 
| Causative? | 眼が冴えさせる | 
| Prohibitive? | 眼が冴えるな | 
| 〜ます? | 眼が冴えます |