It would depend on the sentence. Use "He and Bob" any place you would use "he" and "Him and Bob" any place you would use Him...
Examples:
"He and Bob went to the store."
"I gave it to Him and Bob."
Although it is more common to say the name before the pronoun, as in "Bob and him".
"That was wrong" is a grammatically correct sentence.
Yes, it is grammatically correct.
Yes, Almighty God is grammatically correct.
This sentence is grammatically correct.
No, it is not grammatically correct. If you want someone to correct it for you, please can you explain what you are trying to refer to?
Yes, as the object of a verb or a preposition: I saw Bob; I saw her; I saw Bob and her. Some people think "her and Bob" sounds better, but it is not any more correct. There is nothing wrong grammatically with the construction 'Bob and her' as the object of a verb. Whether it sounds better or worse than 'her and Bob' is a question of usage or taste, not of grammar.
yes
Yes. She found is correct, Bob and Bill found is correct so She, Bob and Bill found is correct.
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.
Yes, Almighty God 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.