| Verb Class | Irregular | ||
|---|---|---|---|
| Stem | su - | ||
| Gerund | shite | ||
| This is for a guide only. Please double-check if you need to use the information for something important. I've done my best to get everything right but like any self respecting software there may be bugs in it! . | |||
| Positive | Negative | ||
| Present Indicative | Plain | benkyou suru | benkyou shinai |
| Polite | benkyou shimasu | benkyou shimasen | |
| Past Indicative | Plain | benkyou shita | benkyou shinakatta |
| Polite | benkyou shimashita | benkyou shimasen deshita | |
| Presumptive | Plain |
benkyou shiyō benkyou suru darō |
benkyou shinai darō |
| Polite |
benkyou shimashō benkyou suru deshō |
benkyou shinai deshō | |
| Past Presumptive | Plain |
benkyou shitarō benkyou shita darō |
benkyou shinakatta darō |
| Polite | benkyou shimashitarō | benkyou shinakatta deshō | |
| Present Progressive | Plain | ||
| Polite | benkyou shite imasu | benkyou shite imasen | |
| Past Progressive | Plain | ||
| Polite | benkyou shite imashita | benkyou shite imasen deshita | |
| Provisional | Plain | benkyou sureba | benkyou shinakereba |
| Polite |
benkyou shimaseba benkyou shimasureba |
benkyou shimasen nara | |
| Conditional | Plain | benkyou shitara | benkyou shinakattara |
| Polite |
benkyou benkyou shimashitara |
benkyou shimasen deshitara | |
| Potential | Plain | benkyou dekiru | benkyou dekinai |
| Polite | benkyou dekimasu | benkyou dekimasen | |
| Causative | Plain | benkyou saseru | |
| Polite | |||
| Imperative | Plain | benkyou shiro | benkyou suruna |
| Polite | benkyou shite kudasai | benkyou shinaide kudasai | |
