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Sentence
Span Details
レチノイン酸
retinoic acidnoun
は、
topic markergrammar
ニキビ
pimple; acne-> 面皰noun
治療
medical treatment; therapy; carenoun, suru verb
に
direction, time, indirect object, or target markergrammar
使わ
use; make use of; employ; handle; spend; consume; speak-> 使うgodan verb
れる
passive voice; suffering passive; potential form; spontaneous occurrence; honorific (sonkeigo)auxiliary verb, auxiliary
ことがあり
have done (something); something has occurred; sometimes; there are times when-> 事があるexpression, verb
ます。
polite non-pastgrammar