Certainly. If one were to make a comparison saying "He can run as quick as a cheetah" then it would be grammatically correct.
No.
No, it's "Your scissors are sharp."
In a line of dialogue in a story. Or if you are quoting a person. So if you were to say and 7 times consecutively, and i quoted you on paper, it would be grammatically correct.
Yes
"Not like that" can be grammatically correct, depending on the context.
Yes, 'for free', is grammatically correct.
Yes! That is grammatically correct!
The phrase "You are not knowing" is not grammatically correct. Instead, you can use "You do not know" or "You are not aware."
Yes, Almighty God is grammatically correct.
"That was wrong" is a grammatically correct sentence.
Yes, it 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.
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, it is not grammatically correct. The correct way to say it is "your older sister."
No, the grammatically correct sentence would be: "I am annoyed by the way you behave."