verb
or chiefly Brit enquire -quires; -quired; -quiring
somewhat formal :to ask for information [no obj]
usually + about
inquire after
[phrasal verb]
inquire after (someone or something) :to ask for information about (someone or something)
inquire into
[phrasal verb]
inquire into (something) :to gather or collect information about (something)
inquire of
[phrasal verb]
inquire of (someone) formal :to ask (someone) a question