Would you mind being quiet during the assembly?

Meaning: This means to ask people if they would be willing to not make any noise or to be silent while the assembly is happening. It's like saying, Would you be willing to please not talk or make any noise while the assembly is happening?

Choice of Words: Would is a modal verb that is used to express a request or suggestion. You is a pronoun that refers to the person or people being spoken to. Mind is a verb that means to pay attention to or to be concerned about something. Being is a present participle of the verb to be that is used to indicate a state or condition. Quiet means to make no noise or to be silent. During means at the time of or while something is happening. Assembly means a gathering of people, especially for a formal or official purpose. When you put them together, "Would you mind being quiet during the assembly?" is a polite request asking people if they would be willing to not make noise while the assembly is happening.