Вероятно, родители запретили ему ех

Вероятно, родители запретили ему ехать на юг с вами. Вам следовало самим поговорить с ними.

Результаты (английский) 1:

Probably, his parents forbade him to go south with you. You should talk to them himself.

Результаты (английский) 2:

Perhaps the parents had forbidden him to go south with you. You should talk to them yourself.

Результаты (английский) 3:

perhaps parents forbid him to go south with you. you have to talk to them. "