I need to take time off to take care of my sick in-laws.

1. Time: It is an express (or default) requirement of almost all enterprises for employees to ask for leave in advance. Of course, if there are special circumstances, temporary leave, etc. It is also allowed by many enterprises to make up the leave after the event, but most enterprises will have a time limit for this kind of "make up after the event", mostly on the day when employees return to work, or 1~2 working days. 2. Format: (Illustrated by World Factory Network) Description of leave (centered) refers to the person in charge or department that accepts leave (title, such as Manager Wang or Human Resources Department, please pay attention to capitalization). My reasons (leave reasons: reasons, reasons and other reasons, briefly stated) will range from _ _ _ _ to _ _ _ _ _. Applicant: XXX (applicant's signature) _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _.