امکان دارد ...؟

Ask for the action. امکان دارد پنجره را ببندید؟ addresses someone with the plural/respectful ـید ending. It usually asks them to close the window, rather than requiring a yes/no discussion of whether windows can be closed.

Keep the addressee distinct. می‌شود کمی صبر کنید؟ asks the other person to wait. می‌شود من اینجا بنشینم؟ instead asks permission for the speaker to sit. The ending and any explicit pronoun reveal the difference.

State a conditional politely. اگر ممکن است، آدرس را بنویسید introduces the request with if possible. The request remains a second-person imperative; the conditional opener does not replace the actor or the object.

Match the relationship. A direct familiar کمی صبر کن may fit a close relationship, while a careful question may fit an unfamiliar listener. Longer phrasing is not always kinder, and respectful verb endings do not guarantee an appropriate tone in every encounter.