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.
Yes, the phrase "as best as possible" is grammatically correct. It is a comparison using the superlative form to indicate doing something to the highest degree achievable.
No, "firsts" is not grammatically correct. It should be "first."
The phrase "You are not knowing" is not grammatically correct. Instead, you can use "You do not know" or "You are not aware."
Yes, "He sailed his boat on the river" is grammatically correct.
"Not like that" can be grammatically correct, depending on the context.
Yes it is.
That sentence is grammatically correct only if you are talking about a single item called "The Best Pictures." Otherwise, the correct form is "The best pictures will find their places in the museum."
Yes! That is grammatically correct!
Yes, 'for free', is grammatically correct.
I like the kind of person you are.
"That was wrong" is a grammatically correct sentence.
Yes, it is grammatically correct.
Yes, Almighty God is grammatically correct.
your question isn't grammatically correct or coherent.
No,it is not grammatically correct.
"You have always been the best" would be more grammatically correct.