"Not like that" can be grammatically correct, depending on the context.
No, "I like him best" is grammatically correct. It is a simple sentence in which "I" is the subject, "like" is the verb, and "him best" is the object.
The phrase "Is you don't miss me do you" is not grammatically correct. It should be rephrased to something like "Don't you miss me?" to be correct.
No, "firsts" is not grammatically correct. It should be "first."
Yes! That is grammatically correct!
Yes, 'for free', is grammatically correct.
I like the kind of person you are.
The phrase "You are not knowing" is not grammatically correct. Instead, you can use "You do not know" or "You are not aware."
"That was wrong" is a grammatically correct sentence.
Yes, it is grammatically correct.
Yes, Almighty God is grammatically correct.
'What a drunkard you are' is a grammatically correct English sentence.
Yes, "He sailed his boat on the river" is grammatically correct.