初学者 2 - 常用代词

a person who is not mentioned by name

某人, 一个人

a person whose identity is not specified or known

有人, 一个人

used to mention a thing that is not known or named

某物, 东西

all the people that exist or are in a specific group

每个人, 大家

every single person in a group, community, or society, without exception

每个人, 所有人

all things, events, etc.

一切, 所有东西

used when referring to a person or thing that was recently mentioned or one that is close in space or time

这个, 那个

used when referring to a person or thing that was previously mentioned or one that is not close in space or time

那, 那个 (pronoun)