補助動詞. Verbs such as いる, おく, ある, いく, くる, and しまう, which can follow the 〜て form of a verb with special grammaticalized meanings. Not to be confused with 助動詞（じょどうし） "auxiliary verbs", which are inflecting function words or endings such as 〜ない and 〜ます. We use the translation "subsidiary verbs" on this site to avoid confusion.
- 補助動詞 on Japanese Wikipedia