It depends on whether you say or ask the request. If it's a question, then you put a question mark; if it's a statement, then you put a period.
The sentence "May you borrow this" is an example of an interrogative sentence, specifically a polite request or permission seeking question. It is structured as a question with the modal "may" as the helping verb.
Ending with a period. Ending with an exclamation mark for emphasis. Ending with a question mark if it is a polite command or a request for confirmation.
She couched her request in such polite terms that it was hard to refuse.
"Please" in this sentence is an adverb, modifying the verb "allow" to make the request more polite.
Will you get off my chair, please. (It's a polite request, so no question mark.)
Polite is the correct spelling.An example sentence is: He was very polite.Another example sentence is: I tried to be polite but she was too annoying.
The word please in the phrase 'please be informed' means a polite request. Please is defined as polite consideration or request.
The young man was very polite.
' Mamotte soshite tatakatte ' , in an imperative and not respective manner , as from a commander to soldiers, add -kure to the end of the sentence to change the sense to informal request and -kudasai to change it into a respecful and polite request.
The polite gentleman offered to take my coat.
Polite behaviour is not a question and therefore requires no answer.
Yes, the sentence "Could you please stop mocking me?" is grammatically correct. It is a polite way to request someone to cease making fun of or imitating you.