Actually, it would be "remarks" if the Minister is to make more than one remark... If the Minister will only make ONE remark, the word "remark" should be preceded by the word "a".
What the minister does, does matter. would be correct.
"You once met the prime minister." is a correct sentence.
Two manyeth.
"How are you" is a correct sentence.
Yes, this sentence is correct.
Yes.
His doctor ordered some lab tests, including a lipid panel and thyroid-function tests.
You are palpitating. This is a correct sentence.
With the exception of not capitalizing the 'y' at the start of the sentence, it is a correct sentence.
That sentence is grammatically correct.
no it is not a correct sentence.
no_____If the sentence is You do do that (meaning You are in the habit of doing that) the grammar is perfectly correct and the sentence 'does have correct grammar'.