No, in the sentence 'The shoes that he wear...', the verb 'wear' is the first and second person form; the pronoun 'he' is a third person pronoun, requiring the third person verb form 'wears'. 'The shoes that he wears...' is a noun clause, not a complete thought, an incomplete sentence. Examples:
Subject: The shoes that he wears are expensive.
Object: I like the shoes that he wears.
No, it is not. You must be more specific: a pair of shoes, a pair of pants.
No.This is singular, is is the singular form of the verb be, a is an indefinite article used before singular nouns, but shoes is plural."This is a black shoe" is correct."These are black shoes" is correct, as well.
"Not like that" can be grammatically correct, depending on the context.
Yes! That is grammatically correct!
Yes, 'for free', 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, Almighty God is grammatically correct.
Yes, it is grammatically correct.
Sure. It would also be grammatically correct to write He spoggled his nubbix on the goober. Grammatically correct and meaningful are not the same.
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.