12 упражнение Образуйте условные предложения

If she wasn't busy, she would come to see us.
If she hadn't been busy yesterday she would have come to see us.
If I had a dictionary I would be able to translate the article.
If I had had the dictionary I would have been able to translate the article.
If the box is heavy, I will take a taxi.
If the box hadn't been heavy, I wouldn't have taken a taxi.