初心者 2 - 一般的な代名詞

a person who is not mentioned by name

誰か, 人

a person whose identity is not specified or known

誰か, 一人

used to mention a thing that is not known or named

何か, 物

all the people that exist or are in a specific group

誰もが, みんな

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

全員, 皆さん

all things, events, etc.

すべて, すべてのこと

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

これ, それ

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

あれ, それ (pronoun)