In these questions, the auxiliary verb and the ACTOR change places. For instance,
So, you are becomes are you.
Let’s look at some more examples:
NOTE: ‘Prevents’ is an action word (and not a state word). An action word is when you DO something like ‘stand’, ‘sit’, ‘run’, ‘sleep’, and so on.
The state verbs are those that represent the state of affairs. For instance, ‘angry’, ‘happy’, ‘red’, ‘blue’, etc are the state verbs.
In sentences with action verbs, the Yes/No Question needs to have the do-verb before the actor. The do-verb is dropped in the sentences.
So, you don’t say
I do play cricket.
Unless you wish to stress on it. You simply say:
I play cricket.
The Yes/No Question formed from this statement therefore reads thus:
Do you play cricket?