grammaticality - Does this vs Is this (grammar) - English Language . . . (I assume you mean "Does this belong to you?" You can't use is because do is the auxiliary verb we use when forming questions From the Cambridge Grammar website: Do is one of three auxiliary verbs in English: be, do, have We use do to make negatives (do + not), to make question forms, and to make the verb more emphatic
auxiliary verbs - When to use does and when to use would? - English . . . You would get the same answer to each question whether you used would or does; both questions ask for the price of the action mentioned There is a slight difference in the implication of why you're asking, but the information you want is the same When you ask How much does it cost to [x], you're simply asking for information You could be asking out of pure curiosity, or because you want to
When to use is vs. does when asking a question? When do I use is or does when I ask a question? For example, Is your item still for sale? Does your item still for sale? I am not sure which one to use
word usage - “file doesn’t exist” or “file doesn’t exists” - English . . . That file doesn't exist In any verb construction (auxiliaries + lexical verb) only the first is inflected for tense, person and number In your example does is the first verb in the construction does exist Auxiliary do always takes an infinitive (plain) form as its complement: exist
Does versus will--Can does be followed by an ing verb and will? does staring at this will hurt my eyes? does teaching will make me more patient? The subjects in your sentences are staring and teaching The auxiliary you should have is will (if there's another auxiliary, we never need DO!) To make the question we move the auxiliary in front of the subject like this: Will staring at this hurt my eyes?