Они посмотрели на эту картину и пон

Они посмотрели на эту картину и поняли, что художник рисовал ее много лет. .

Результаты (английский) 1:

They looked at this picture and realized that the artist painted it many years. .

Результаты (английский) 2:

They looked at the picture and realized that the artist painted it for many years. .

Результаты (английский) 3:

They look at the picture and realized that artist sketching it for many years. .