1)если бы у меня были проблемы с родителями , я бы с ними поговорил. 2)я бы тебе не позвонил, если бы ситуация не была такой опасной. 3)люди бы не леса , если бы знали о том , как леса важны дня них и животных перевести на используя conditional 2 , conditional 3 . заранее безумно вам : )

If I had problems with my parents I would talk with them.

If the situation wasnt so dangerous Iwouldnt have phoned you

People wouldnt сut forests if they knew that forests are important for them and for animals

If I had problems with my parents I'll talk with them.

I'll not have phoned you,  If the situation wasnt so dangerous

People wouldnt сut forests if they knew, how important are forests  for them and for animals