Ars Technica: The Artemis II mission has ended. Where does NASA go from here?
The Artemis II mission has ended. Where does NASA go from here?
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 purchase the item in question, but no implication is made either way. When you ask How much would it cost to [x], there is a stronger implication that you're wanting to buy the item you're discussing.
auxiliary verbs - When to use "does" and when to use "would"? - English ...
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.
(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.
grammaticality - Does this vs Is this (grammar) - English Language ...
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.