used when the subject and object of the sentence are the same, indicating that the action is done to oneself
我自己
used when a person who is addressed is both the one who does an action and the one who receives the action
你自己, 您自己
used when both the subject and object of the sentence or clause refer to a male human or animal who is being talked about
他自己, 自身
used when a female human or animal is both the one who does an action and the one who is affected by the action
她自己, 自己
used when an animal or object is both the thing that does an action and the thing that the action is done to
它自己, 自身
used when the speaker and one or more other people are both the ones who do an action and the ones who are affected by it
我们自己, 我们
used when a group of people who are being addressed are both the ones who do an action and the ones that are affected by it
你们自己
used when a group of people or animals are both the ones who do an action and the ones who are affected by it
他们自己, 她们自己
