Questions & Answers about آیا دهانت باز است؟
How is 'your mouth' formed in this sentence?
The word دهانت is made of the noun دهان (mouth) plus the possessive ending ـَت (-at), which means 'your' (singular). Instead of using a separate word for 'your', Farsi simply attaches this short ending directly to the noun.
Do I always have to use آیا to ask a yes/no question?
No, you do not. The word آیا is mostly used in written or formal Farsi to clearly signal a yes/no question from the very beginning. In everyday spoken Farsi, you can just say دهانت باز است؟ and raise the pitch of your voice at the end, exactly like in English.
Why isn't there an 'e' sound connecting 'mouth' and 'open'?
You only use that connecting sound (the ezafe) when an adjective directly describes a noun inside a phrase, like in 'your open mouth'. Here, باز (open) is part of the sentence's predicate: 'your mouth is open'. Because it is connected by the verb است (is), no ezafe is used.
Can I say 'your mouth' using separate words instead of the attached ending?
Yes! You could say دهان تو using the separate pronoun تو (you) and the connecting ezafe. Both mean 'your mouth', but attaching the ending ـَت to the noun is extremely common in Farsi, so it is a great pattern to get used to.