Modal Verbs in Passive Voice

I can be answered the question

The question can be answered by me

The box will be carryed by she

The box would be carryed by her

Both are incorrect

The window shouldn`t be opened

The window should be opened

Cards may be played by we

Cards might be played by them

The car ought to be washed by you

The car ought to be washt by you

The form must be filled in

The form must be filled in by him

both are correct

Bread needn`t to be bought

Bread doesn`t have to be bought by them

both are correct

The sentence couldn`t be read by him

He could not be read by him

Our English will be tested by the teacher

Will our English be tested by the teacher?

Could the door be locked by Jenny?

Could the door locked by Jenny?