Это время обозначает действие, которое длилось в какое-то время. Образуется при вс глагола was(с местоимениями I,he, she,it) или were(с местоимениями you, we, they)+ к основному глаголу добавляется окончание-ing.Например: I was working at 10 o'clock last night. Yesterday she was wearing jeans and a sweater. It wasn't raining when I went out. What were you doing at 3 o'clock?
I was working at 10 o'clock last night.
Yesterday she was wearing jeans and a sweater.
It wasn't raining when I went out.
What were you doing at 3 o'clock?