tag question

US /ˈtæɡ ˌkwes.tʃən/
UK /ˈtæɡ ˌkwes.tʃən/
"tag question" picture
1.

a question converted from a statement by adding a short interrogative phrase (e.g., isn't it? or don't you?)

:
You're coming, aren't you?
She speaks English well, doesn't she?