I don't speak Japanese

to inform, to teach, to instruct / to tell

will you marry me

the Japanese language

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

(chiefly women's speech) first person singular pronoun: I, me

teachings, doctrine, lesson

(polite) first-person singular pronoun: I, me