questions without auxiliary verb?
Hi everybody,
so i was watching some tv shows a few days ago and a realized sometimes when someone was makking a question it didn't use the auxiliary verbs, i cannot remember the setences but there was a lot... i figured out sometimes they didn't use those auxiliary verbs because they already knew the answer like they were just asking to confirm sometihng or as a sarcasm form, but i even know if i'm right though.
If you guys could exemple me why it happen or even give some exemplos ( or both , it'd help me a lot.

Thank you in advance!

Question

questions without auxiliary verb?
Hi everybody, 
so i was watching some tv shows a few days ago and a realized sometimes when someone was makking a question it didn't use the auxiliary verbs, i cannot remember the setences but there was a lot... i figured out sometimes they didn't use those auxiliary verbs because they already knew the answer like they were just asking to confirm sometihng or as a sarcasm form, but i even know if i'm right though. 
  If you guys could exemple me why it happen or even give some exemplos ( or both , it'd help me a lot.

Thank you in advance!

Answer

It's definitely true that in English, most questions use auxiliary verbs (am/is/are or do/does).  English loves auxiliary verbs.

There are two types of questions (that I can think of) that don't [ I know the answer.
"What happened?" -->  Nothing happened.
vs
"What did you eat?" --> I ate nothing
"Where are you going?" I'm going home.

Another option is colloquial.  The "do" or the "are" can be left off.  For example, "Do you understand" --> "Understand?" or "You got it?" and "are you coming?" --> "you coming?".

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