For yes/no questions, replace “is, are, do” with the sign “?”.
Keep modal words like “can", "should", and "will”.

For WH questions, eliminate “is, are, do” and the sign “?”.
Keep modal words like “can", "should", and "will.”

WH = What, Which, Who, Where, When, Why, How

Examples
Yes/No Question
Do
Do you like me?

Is/ Are/ Was/ Were
Are you ok?

Modal: Can/ Should/ Will
Can they film?



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WH Questions 
Do
Where do you live?

Is/ Are/ Was/ Were
Who are they?

Modal: Can/ Should/ Will
When should I cook?