Subject, verb, punctuation, capittalization, complete thought.
rule that could explain what makes a sentence grammatically correct or not before the noun."
Check if the sentence starts with a capital letter and and makes sense.
The correct way to write the sentence is "two and two makes four."
Not always but it makes you sound more proper and correct
in order to be a correct sentence, it needs a subject and a verb.
That question makes no sense. Please write your question in a complete sentence.
No, it should be "I think experience makes me a little bit stronger".
You're question is incorrect
"How are you" is a correct sentence.
Yes, this sentence is correct.
"If" makes it conditional, so "... what would you do?" would be proper.
You are palpitating. This is a correct sentence.