疑问代词表任指（谁都/什么都） yíwèn dàicí biǎo rènzhǐ
疑问代词表任指（谁都/什么都）（yíwèn dàicí biǎo rènzhǐ）means “any/every: question words + 都/也 for universal reference”. A question word (谁, 什么, 哪儿, 怎么…) followed by 都 or 也 loses its question meaning and becomes 'all/any/every. Formation: 疑问代词（谁/什么/哪儿…）+ 都/也（+ 不/没）
any/every: question words + 都/也 for universal reference
HSK3Formation
疑问代词（谁/什么/哪儿…）+ 都/也（+ 不/没）
Explanation
A question word (谁, 什么, 哪儿, 怎么…) followed by 都 or 也 loses its question meaning and becomes 'all/any/every.' Affirmative means 'everyone/everything' (谁都知道 'everyone knows'); with a negative it means 'no one/nothing' (什么都不想吃 'don't want to eat anything'). 也 is common in negative sentences.
Examples
Note
都/也 is required after the question word. Use 也 especially in negatives.
FAQ
疑问代词表任指（谁都/什么都） — what does it mean and how is it used?
any/every: question words + 都/也 for universal reference. A question word (谁, 什么, 哪儿, 怎么…) followed by 都 or 也 loses its question meaning and becomes 'all/any/every.' Affirmative means 'everyone/everything' (谁都知道 'everyone knows'); with a negative it means 'no one/nothing' (什么都不想吃 'don't want to eat anything'). 也 is common in negative sentences.
疑问代词表任指（谁都/什么都） — how do you form it?
疑问代词（谁/什么/哪儿…）+ 都/也（+ 不/没）
疑问代词表任指（谁都/什么都） — any usage notes?
都/也 is required after the question word. Use 也 especially in negatives.