| Form | Conjugation | 
|---|---|
| Plain? | 伸べ広げる | 
| Past? | 伸べ広げた | 
| Negative? | 伸べ広げない | 
| Volitional? | 伸べ広げよう | 
| Imperative? | 伸べ広げろ | 
| Polite imperative? | 伸べ広げなさい | 
| 〜たい? | 伸べ広げたい | 
| Conditional (〜えば)? | 伸べ広げれば | 
| Conditional (〜たら)? | 伸べ広げたら | 
| Potential? | 伸べ広げれる | 
| Passive? | 伸べ広げられる | 
| Causative? | 伸べ広げさせる | 
| Prohibitive? | 伸べ広げるな | 
| 〜ます? | 伸べ広げます |