Regarding is defined as in reference to. An example of regarding used as a preposition is the phrase "the letter regarding summer vacation," which means the letter about summer vacation. Concerning, respecting.

Should I use about or regarding?

When comparing regarding and about, they are very similar, but the word about has more uses and is more common than regarding, which is more formal. 1. The student asked a question regarding his homework. ... The student asked a questions about his homework.

Is it grammatically correct regarding?

The "s" would be stuck onto "regard" only if you are saying "as regards," which is a correct alternative. "With regard to" is also correct. "Regarding to" is incorrect; "regarding" is all you need to say.