ら・たち

About

Although Japanese nouns can be either plural or singular, most pronouns require additional grammar to become plural. Two of the most common pluralizers are 等ら (often written in kana) and 達たち.

達たち is a fairly polite pluralizer that can attach to a pronoun to express "we" or "you (people)".

等ら (also "we" or "you (people)") (often written in kana) is more casual than 達たち, and can be rude if used in the wrong situation.

There are certain cases in which either 達たち or 等ら is preferred, such as 彼かれ, which usually takes 等ら.

Summary

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  ら and 達たち are pluralizers

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  達たち and ら mean "we" or "you (plural)"