VOICE

Let the water be boiled, cooled and kept in the fridge.

Let the water be boiled and cooled before it is kept in the fridge by you.

Let the water be boiled by you and cooled by you before it is kept in the fridge.

Let the water be boiled and cooled before it is kept in the fridge.

The Nobel Prize for Physics is won by an American scientist.

The Nobel Prize has been won by an American scientist.

The Nobel Prize for Physics has been won by an American scientist.

The Nobel Physics Prize has been won by an American scientist.

The alarm clock rang, startled and awakened me from sleep.

I was startled from the deep depths of slumber by the ringing of the alarm clock.

The ringing of the alarm clock made me awake.

The alarm clock rang and startled me from the depths of slumber.

I has written a letter.

I had written a letter.

I have written a letter.

I have been writing a letter.

Will a letter have written by him?

Will a letter have been written by him?

Will a letter to be written by him?

Will a letter be written by him?