"aya" in Persian is like "Do" in English. for making a questioning phrase in formal conversation we use "aya".Mercii OutofControl! What 'aya' means
In Persian :I want (something)
Formal : Man (Chizi) Ra Mikhaham.
Informal : Man (Chizi) ro mikhaam.
In Persian :He/she did/do (something)
Oon kari ro injam mide.
it's more complex to explain here. but for example :and tell how to bend words in past tense? Like she goes - She was going etc. Thaanks!
you go to this house : to be in khoune miri
you went to this house : to be in khoune rafti
you will go to this house : to be in khoune khahi raft.
in Persian every verb has it's own root.
GO / WENT ==> Root in Persian : Roo / Raft
Build / Built ==> Root in Persian : Saaz / Sakht
and more.
i hope it's helpful for you.