The correct grammar is: "Are those correct?"
It depends on context. For example, in a conversation between two people: Person #1: Those items are not for sale. Person #2: Which are? In that context, it is understood that "Which are?" means "Which items are for sale?"
Yes, "To those who are Irish" is correct grammar. It is a prepositional phrase that correctly identifies a specific group of people.
No, "will be had" is not a correct grammar. The correct grammar would be "will have."
No, the correct grammar would be "I hate you the way you hate me."
"July has just been started" is not correct grammar, instead the correct grammar is "July has just started."
It depends on context. For example, in a conversation between two people: Person #1: Those items are not for sale. Person #2: Which are? In that context, it is understood that "Which are?" means "Which items are for sale?"
That's not incorrect, but "Who are those who leave" would be better.
No, "will be had" is not a correct grammar. The correct grammar would be "will have."
No, it is correct grammar, not a correct grammar.
"On a train" is correct grammar.
no_____If the sentence is You do do that (meaning You are in the habit of doing that) the grammar is perfectly correct and the sentence 'does have correct grammar'.
Yes, "To those who are Irish" is correct grammar. It is a prepositional phrase that correctly identifies a specific group of people.
"July has just been started" is not correct grammar, instead the correct grammar is "July has just started."
This will be an exciting month is correct grammar.
The grammar is correct as it is.
Yes, that is correct grammar.
No, the correct grammar would be "I hate you the way you hate me."