I was doing
I've done this a thousand times.
Ты можешь представить, что я делал торт?
Can you imagine that I made a cake?
Что бы я ни делал ради тебя, я делал от всего сердца.
Whatever I did for you, I did it wholeheartedly.
— Три идиота (2009)
What do you think I was doing?
He asked me what I was doing.
I did almost the same thing.
Я делал то, что должен был делать.
I did what I had to do.