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--- noun | clause + shika + negative clause only | only when | only if
___ From 話す hanasu
• それは戸田さんにしか話していない。
Sore wa Toda-san ni shika hanashite inai.
I haven't told it to anybody but Mr. Toda.
Grammar: [nv] しか shika
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___ 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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