1. Active to Passive Voice

2. The auxilliary ‘to be’ will always be necessary.
For example :
Present simple active voice:
She writes letters every day.
Present simple passive voice:
Letters are written every day.

3. The auxilliary ‘to be’ will always be necessary.
For example :
Present continuous active voice:
She is writing letters at the moment.
Present continuous passive voice:
Letters are being written at the moment.

4. The auxilliary ‘to be’ will always be necessary.
For example :
Past simple active voice:
She wrote letters yesterday.
Past simple passive voice:
Letters were written yesterday.

5. The auxilliary ‘to be’ will always be necessary.
For example :
Past continuous active voice:
She was writing letters when the phone rang.
Past continuous passive voice:
Letters were being written when the phone rang.

6. The auxilliary ‘to be’ will always be necessary.
For example :
Present perfect simple active voice:
She has written letters.
Present perfect simple passive voice:
Letters have been written.

7. The auxilliary ‘to be’ will always be necessary.
For example :
Future simple WILL active voice:
She will write letters.
Future simple WILL passive voice:
Letters will be written.

8. The auxilliary ‘to be’ will always be necessary.
For example :
Future simple GOING TO active voice:
She is going to write letters.
Future simple GOING TO passive voice:
Letters are going to be written.

9. The auxilliary ‘to be’ will always be necessary.
For example :
Conditional active voice:
She would write letters.
Conditional passive voice:
Letters would be written.

10. The auxilliary ‘to be’ will always be necessary.
For example :
Past conditional active voice:
She would have written letters.
Past conditional passive voice:
Letters would have been written.

11. The auxilliary ‘to be’ will always be necessary.
For example :
Modal verb CAN in active voice:
She can write letters.
Modal verb CAN in passive voice:
Letters can be written.

12. The auxilliary ‘to be’ will always be necessary.
For example :
Modal verb SHOULD in active voice:
She should write letters.
Modal verb SHOULD in passive voice:
Letters should be written.

13. The auxilliary ‘to be’ will always be necessary.
For example :
Modal verb MUST in active voice:
She must write letters.
Modal verb must in passive voice:
Letters must be written.

14. The auxilliary ‘to be’ will always be necessary.
For example :
Modal verb MAY in active voice:
She may write letters.
Modal verb MAY in passive voice:
Letters may be written.

15. Make the following sentence passive.
They are calling it the scam of the century.
This sentence is in the present continuous.
It is being called the scam of the century.

16. Make the following sentence passive.
You don’t have to hand in the essay today.
This sentence is in the present simple.
The essay doesn’t have to be handed in today.

17. Make the following sentence passive.
They Board of Directors will need to make a decision soon.
This sentence is in the future simple WILL.
A decision will need to be made soon by the Board of Directors.

18. Make the following sentence passive.
The company patented this model three years ago.
This sentence is in the simple past.
This model was patented three years ago.

19. Make the following sentence passive.
Scientists have made a major breakthrough in cancer research.
This sentence is in the present perfect simple.
A major breakthrough has been made in cancer research.

20. Make the following sentence passive.
What are people saying about him.
This sentence is in the present continuous.
What is being said about him (by people).

21. Make the following sentence passive.
They say he is a very good barrister.
This sentence is in the present simple.
It is said (that) he is a very good barrister. OR
He is said to be a very good barrister.

22. Make the following sentence passive.
They say that L’Oreal is thinking about taking over that company.
This sentence is in the present continuous.
It is said that L’Oreal is thinking about taking over that company. OR
L’Oreal is said to be thinking of taking over that company.

23. Make the following sentence passive.
She gave John a bracelet for his birthday.
This sentence is in the simple past.
There is a direct object (John) and an indirect object (a bracelet) in this sentence.
John was given a bracelet for his birthday. OR
A bracelet was given to John for his birthday.

24. Make the following sentence passive.
The company would not have laid off the staff if they had not had such financial problems.
This sentence is in the past conditional.
The staff would not have been laid off (by the company) if they had not had such financial problems.