passive voice

present tense

act: He builds a house

pass: A house is built by him 

past tense

act: He built a house

pass: A house was built by him 

present progressive 

act:  He is building a house

pass: A house is being built by him 

past progressive 

act: He was building a house 

pass: A house was being built by him 

future will/going to 

act: He will build a house 

pass: A house will be built by him

act: He is going to build a house

pass: A house is going to be built by him 

present prefect

act: He has built a house 

pass: A house has been built by him

past prefect

act: He had built a house 

pass: A house had been built by him

corrección de la evaluación

1. They must make their double bed slowly at university for a year 

How must they make their double bed at university for a year?

2. Simple past tense 

They made their double bed slowly at university last week 

Where did they made their double bed slowly yesterday?

3. Future going to.

They are going to make their double bed slowly at university next week

When are they going to make their double bed slowly at university?

4.Present perfect

They have made their double bed slowly at university for a year

How long have they made their double bed at university?

5. Present tense 

They  make their double bed slowly at university today

What do they make their double bed slowly at university?

Which bed do they make their double bed slowly at university?