adverb, noun which may take the genitive case particle 'no'
Refers to a past time or a previous state; often used in statements about something that was true in the past but is no longer the case. Can also mean 'ever' in questions.
かつてここは海だった。
This place was once a sea.
彼はかつて有名な歌手だった。
He was once a famous singer.
adverb, noun which may take the genitive case particle 'no'
never yet; never before; first time
Used with a negative verb to express that something has never happened before; emphasizes the absence of prior experience.
こんなに美しい景色はかつて見たことがない。
I have never seen such a beautiful view before.
彼はかつて嘘をついたことがない。
He has never told a lie.