助詞N4
（疑問詞+）も
no- (nowhere/no one/nothing)
Structure
疑問詞 + も + 否定（誰も / 何も / どこにも 等）
Explanation
Question word + も + negative expresses total negation, "no one / nothing / nowhere" (e.g., 誰もいない, 何も見えない).
Examples
教室に誰もいません。
There's no one in the classroom.
朝から何も食べていません。
I haven't eaten anything since morning.
Note
Question word + も must pair with a negative for total negation. In affirmative sentences use question word + か or + でも. Note どこにも takes a negative.