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Grammar › N4 · 09 Appearance, hearsay & judgment

〜かどうか: whether or not

N4 · 09 Appearance, hearsay & judgment

Puts a yes/no question inside a sentence: "whether or not".

Plain form + かどうか; noun and na-adjective drop だ. Used with 分からない, 知らない, 聞く, 確かめる. Question words use か alone (何時か). どうか can be dropped.

Examples

I do not know whether he will come.

I will try whether this medicine works.

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