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--- Na-Adjective + toki [ni] When something is / was ...
___ From [na] 静か shizuka
• 僕は静かな時しか本を読まない。
Boku wa shizukana toki shika hon o yomanai.
(Literally): Except when it is quiet I do not read books.
I read books only when it is quiet.
Grammar: [nv] 時 toki
Grammar: [nv] しか shika
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