In Canada it is widely considered to be grammatical and in the US it is widely considered (outside of some parts of northern New England) to be incorrect. I'll admit I don't know with certainty what is kosher across the pond, but I've only ever heard Canadians say this so if you're writing an essay to Oxford you'd be safer to go with "done with dinner."
Correct grammar would be (present tense) "are you doing your shopping", or (past tense) "have you done your shopping".
Yes, that is correct grammar.
No, the grammar is not correct. The correct way to say it is "You have to have it cleaned."
This should say, The next stop will be somewhere in Vasayas, then it will be correct grammar. Written as it is it is not on correct grammar.
No, it is not correct
No, the phrase "it is well" is not grammatically correct. It seems to be missing a verb or adjective to complete the sentence. You could say "It is well done" to make it grammatically correct.
No, it's not correct grammar. The correct way to say it is: "was able to confirm"
No, it is not proper grammar. The correct phrasing is "you and I."
No, the correct grammar would be "Look at what you got."
Yes, "you were correct" is correct grammar. This sentence is in the past tense and conveys that someone was right about something.
Yes
Absolutely.