Yes, the sentence is correct. The implied subject of the sentence is you.
"You come..."
"You enter..."
The correct grammar for this sentence is: When did your friend come?
Yes.
No this is incorrect grammar. To make the sentence grammatically correct you should say: One of my cousins came yesterday.
It is not correct. The correct sentence should be as follows: "At what time would you come?" or 'At what time would you like to come?" or "At what time will you come?" or "would you come at what time?" or "Will you come at what time?" or "At what time will you like to come?" The verb 'should' is not used while asking questions since should is used a modal verb--which does not change its form with first, second or third person nouns or pronouns--used sparingly almost in imperative sentences and in sentences that suggestive of advice.
No, it is not correct. I contains a very common mistake of using "I" as an object when it is part of a compound object (of the preposition "with"). "I" is correct as a subject; "me" is correct as an object. The easiest way to determine whether to use "I" or "me" is to try the same sentence with "I" or "me" alone--leaving "my friends" out of it for this test. You would say, "Can you come with me to Central Park?" You would never say, "Can you come with I to Central Park?" This tells you that you need to use the objective form, "me": "Can you come with my friends and me to Central Park?" No it's correct
The correct sentence is 'I will come home at 3pm'.
The correct grammar for this sentence is: When did your friend come?
Yes, the sentence "you saw your uncle and aunt come out" is grammatically correct. It describes the action of seeing both your uncle and aunt exiting from a place.
No, 'Is he should never have come here' is not a correct sentence and it should be 'He should never have come here.'
The correct sentence is "I come from" as it indicates your place of origin or where you are currently from. "I came from" would be correct if you are referring to a past event of where you came from.
The correct sentence is "Did she come there?" - using "came" is not grammatically correct in this context.
If it's used as a question, yes. If not, then it is a correct phrase but not a complete sentence.
Yes.
The sentence is grammatically correct.
The correct sentence would read: "You came home the latest," or "You are the last to come home."
Yes, that is correct!
No this is incorrect grammar. To make the sentence grammatically correct you should say: One of my cousins came yesterday.