Yes. The form who is the nominative, as opposed to whom.
"That was wrong" is a grammatically correct sentence.
Yes, it is grammatically correct.
Yes, Almighty God is grammatically correct.
This sentence is grammatically correct.
This sentence is not grammatically correct. For the sentence to be grammatically correct, the space between "in" and "to" would have to be removed. Therefore the sentence should read "They are into skating."
It is not correct. The correct usage is: waiting to hear from you.
Yes, it's correct.
"I said to him" is a grammatically correct sentence fragment since "said" is still waiting for its direct object. You said what to him? "I said "to him". would be a grammatically correct sentence.
no. not at all really. I am longing for you, implies the waiting. you don't need the redundant word waiting..
I would need the statement you are referring to in order to assess its grammatical correctness.
Yes, 'for free', is grammatically correct.
"Not like that" can be grammatically correct, depending on the context.
Yes! That is grammatically correct!
This is not grammatically correct. The correct form is 'you do not know', or the abbreviated 'you don't know'.
'What a drunkard you are' is a grammatically correct English sentence.
"That was wrong" is a grammatically correct sentence.
Yes, it is grammatically correct.