I don't speak Japanese

(not) at all (with negative verb) / (colloquial) totally, completely (with affirmative verb)

not at all (with negative verb); totally (with affirmative verb)

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

Japanese-language education for non-native speakers

everything

(colloquial) current boyfriend