1People believe the detectives will solve the crime.
It is believed that the crime will be solved by the detectives
It was believed that the crime will be solved by the detectives
2They think that the police have arrested the wrong man.
They were thought that the wrong man has been arrested by the police
It is thought that the wrong man has been arrested by the police
3The police didn't let reporters enter the crime scene.
Reporters were not allowed to enter the crime scene
Reporters are being not allowed to enter the crime scene
4They made him give a DNA sample.
He was made to give a DNA sample
They were made to give a DNA sample
5He won't let her see the evidence.
She won't be allowed to see the evidence
She was not allowed to see the evidence

Эмм а что сделать то надо?

Must: i must learn by heart this verse  –  я  должен  выучить  этот  стих  наизусть they  must  buy  the  textbooks  – им необходимо купить эти учебники. must  she  send  this  e-mail  today? – она должна отправить это электронное письмо сегодня? they mustn’t go to the library –  они  не  должны  идти  в  библиотеку. must she not speak it in this case? – в таком случае она не должна этого говорить? mustn't: you mustn't play with matches. нельзя играть со спичками. we mustn't lose heart when people complain. мы не должны унывать, когда люди выражают недовольство. you mustn't worry. these are just routine enquiries. вы не должны беспокоиться. это всего лишь обычные вопросы. you mustn't think about it. it's all in the past now. вы не должны думать об этом. сейчас это всё в прошлом. you mustn't allow them to interfere with your business. ты не должен позволять им вмешиваться в твои дела.