'You and your girls' is not a sentence because it has no verb. It can be a sentence by adding one:
You and your girls win.
I am supposed to go to my room.
"Girls have sandwiches" is a perfectly valid sentence.
Girls like it when you look them in the eyes
It is actually supposed to. I was supposed to clean my room. Hope this helps!
how am i supposed to know!
That is what friends are supposed to do
If its at the beginning of a sentence then yes. But if its during a sentence then no.
The nouns in the sentence are girls and bushes.
No it does not have to be capitalised.
I can give you several sentences.I supposed that your homework was due today.You were supposed to finish already.We had supposed that the committee was finished already.
NO , But MOST girls like it . . .
what is that supposed to mean?