1. a. You don't need to buy a ticket.

  b. That must to be John's car.

  c. I can't belive he is her brother.

  d. He might will  win the race.

2. a. I'm very sorry, but ineed to go.

   b. You should be quiet.

   c. School director must to write shedule.

   d. It is, maybe, a simple school.

   e. He couldn't cheating on the entrance exam.

Примечание: Не знаю, подходит ли вам такой перевод, но я постаралсь написать всё с модальными. Удачи!