I am from. :)
'Did she came...' is incorrect. 'Did she come...' is correct.
The correct grammar for this sentence is: When did your friend come?
The correct sentence would read: "You came home the latest," or "You are the last to come home."
No this is incorrect grammar. To make the sentence grammatically correct you should say: One of my cousins came yesterday.
It has come is correct.
"Did he come today ?" is correct
The correct form is When did I come? (I did come when).
The correct sentence is 'I will come home at 3pm'.
Had come is correct.
Yes, the sentence is correct. The implied subject of the sentence is you."You come...""You enter..."
Yes, the sentence is correct.
She didn't come is the correct answer