Random monster
Suru is one of the only two irregular Japanese verbs. It can be combined with verbs of chinese origin and other loan words to form compound verbs.
Verb ClassIrregular
Stemsu -
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! .
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 shimashitara
benkyou shimasen deshitara
Potential Plain benkyou dekiru
benkyou dekinai
Polite benkyou dekimasu
benkyou dekimasen
Causative Plain benkyou saseru
Imperative Plain benkyou shiro
benkyou suruna
Polite benkyou shite kudasai
benkyou shinaide kudasai
Passive Plainsareru