If I______________(have) time, I______________(pick) you up, but i am busy now.
If I had time, I would pick you up.
If you______________(not shout) so loudly, he ______________(not be) so angry that evening.
If you had not shouted so loudly, he would not have been so angry that evening.
If I ______________(be) you, I ______________(apologise) for such a behaviour.
If I were you, I would apologise for such a behaviour.