'What your name is' is lacking correct syntax which by definition is the grammatical arrangement of words in a sentence. It makes it more difficult to understand. In English, the proper arrangement is, "What is your name?"
Yes, "irregardless" is considered nonstandard and grammatically incorrect. The correct term is "regardless."
It is grammatically incorrect to say sister and sister. You just say sisters.
"Off you go" is not grammatically incorrect.
It has no main clause.
Grammatically incorrect.
a-pples
The correct phrasing is "my partner and I." Using "my partner and me" in a sentence as the subject would be grammatically incorrect.
yes actually it is :)
Greek mythology. And your question is grammatically incorrect.
That sentence is grammatically correct.
No, not usually, because normally it is grammatically incorrect.
A mathematically and grammatically incorrect sentence.