Study some words that help us identify Past Continuous.
Words for Past Continuous:
at \(8\) am/pm yesterday — в \(8\) утра/вечера вчера;
all day/night (long) — весь день/всю ночь (напролёт);
the whole day/evening — весь день/вечер;
all the time — всё время;
while — в то время как;
when — когда;
from \(3\) pm to \(4\) pm — с трёх до четырёх вечера.
Yesterday at \(4\) o’clock I was having a meeting with my friend.
From \(2\) pm to \(3\) pm yesterday they were playing the piano.
He was working on the project the whole evening.