write + before doing
kaku mae ni
before doing; before N
meaning: before writing
寝るまえに歯、磨いた?
neru mae ni ha, migaita?
Did you brush your teeth before going to bed? casual
日本に来るまえに、少しだけ日本語を勉強しました。
nihon ni kuru mae ni, sukoshi dake nihongo o benkyou shimashita.
I studied just a little Japanese before coming to Japan. neutral