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inflecting dependent word (in Japanese); bound auxiliary
auxiliary verb (in languages other than Japanese)
日本語の助動詞は複雑だ。
Japanese auxiliary verbs are complex.
助動詞の使い方を授業で習った。
We learned how to use auxiliary verbs in class.
助動詞は動詞の後について時制や態を表す品詞だ。
Auxiliary verbs attach to verbs and express tense or voice.