Помогите просклонять 3 предложения на английском по временам : (((

из Present Simple в:

>Present Continious,

>Past Simple,

>Past Continuous,

>Past Rerfect.

предложения:

1) This book is read by millions of children all over the world.

2) I go to the gym twice a week.

3) We don't know what to tell the teacher.

1 this book is being read ...

This book was read ...

This book was being read ...

This book had been read ...

2 i am going to the gym now

i went to the gym twice a week

I was going to the gym this time yesterday

I had gone to the gym before you came

3 we don't know what we are telling the teacher now

We didn't know what to tell the teacher

We didn't know what we were telling the teacher

We didn't know what we had told the teacher