No. I'd say "during the holiday, I go shopping."
Correct grammar would be (present tense) "are you doing your shopping", or (past tense) "have you done your shopping".
It would be correct to say "you go shopping at the mall" or "you go to the mall to shop". It is not proper grammar to say "you go shopping TO the mall".
Yes, that is correct grammar.
Yes it is correct to say "Have a wonderful Holiday."
Yes, "you were correct" is correct grammar. This sentence is in the past tense and conveys that someone was right about something.
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
That is not quite correct. We do the shopping, but we make the purchases.
No, "Is was able to confirmed" is not correct grammar. The correct phrase would be "It was able to be confirmed."
Yes
Absolutely.
No, The correct grammar for this sentence would be, "He finished doing his homework."