Breakdown of Сначала нас попросили входить поодиночке, а уже потом мы смогли спокойно поговорить.
Questions & Answers about Сначала нас попросили входить поодиночке, а уже потом мы смогли спокойно поговорить.
Because нас is the object, not the subject.
- мы = we as the subject
- нас = us in the accusative/genitive form
In this sentence, the idea is someone asked us, so us is being acted on:
- нас попросили = they asked us
If you said мы попросили, it would mean we asked.
Попросили is past tense plural because the subject is an unstated they.
Russian often leaves out the subject when it is unknown, obvious, or unimportant. So:
- нас попросили literally means they asked us
- but in natural English, it may simply be we were asked
This is a very common Russian pattern:
- Меня пригласили. = I was invited.
- Нас попросили подождать. = We were asked to wait.
So the plural verb does not agree with нас grammatically as an object; it reflects the omitted subject they.