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 yokaku suru
yokaku shinai
Polite yokaku shimasu
yokaku shimasen
Past Indicative Plain yokaku shita
yokaku shinakatta
Polite yokaku shimashita
yokaku shimasen deshita
Presumptive Plain yokaku shiyō
yokaku suru darō
yokaku shinai darō
Polite yokaku shimashō
yokaku suru deshō
yokaku shinai deshō
Past Presumptive Plain yokaku shitarō
yokaku shita darō
yokaku shinakatta darō
Polite yokaku shimashitarō
yokaku shinakatta deshō
Present Progressive Plain
Polite yokaku shite imasu
yokaku shite imasen
Past Progressive Plain
Polite yokaku shite imashita
yokaku shite imasen deshita
Provisional Plain yokaku sureba
yokaku shinakereba
Polite yokaku shimaseba
yokaku shimasureba
yokaku shimasen nara
Conditional Plain yokaku shitara
yokaku shinakattara
Polite yokaku shimashitara
yokaku shimasen deshitara
Potential Plain yokaku dekiru
yokaku dekinai
Polite yokaku dekimasu
yokaku dekimasen
Causative Plain yokaku saseru
Imperative Plain yokaku shiro
yokaku suruna
Polite yokaku shite kudasai
yokaku shinaide kudasai
Passive Plainsareru