"We have to reply."

Translation: 우리들이 대답해야 돼요.

[Le_choc]

Isn't adding 들이 kind of redundant?

[josueetcom]

In English we have the sense of "we (excluding you)" and "we (including you)" so my guess is 우리들 clarifies that the listener(s) is included. Would love to get insight from a more proficient speaker though

[roberto727]

The "들" is just for emphasis and does not necessarily include "you."
https://medium.com/story-of-eggbun-education/korean-plural-marker-%EB%93%A4-deul-81c0c89ea9c5
With nouns relating to people, this redundancy is less unnatural, so 우리들 (we), 여러분들 (people) are fairly natural.
https://korean.stackexchange.com/questions/426/when-must-i-may-i-use-the-plural-%EB%93%A4-on-nouns-pronouns

[wintertriangles]

Yes, but I've heard Koreans use it. Dunno why

[roberto727]

Yes, it's quite common, but certainly not used all the time.

[AlvinKim5]

It is redundant. you can say 우리가

[pQpQrOPY]

I think it's like the Southern thing: y'all (you all"; we all (우리들)

[soobee620]

Can someone explain why 우리들은 is wrong? Interestingly, Duo accepts 우리는, lol.