多分 たぶん
tabun

Adverb

1. probably; likely; perhaps; maybe

きみにはたぶんみんなわかっていることでしょう。
kiminiwa tabun minna wakatte iru kotodeshō.
I expect you know all about it.
na-Adjective
no-Adjective

2. a lot of; much; many; considerable; large (amount); generous