一般過去時、
I bought a book yesterday
A book was bought by me yesterday
一般現(xiàn)在時、
I writes a letter once a week.
A letter is written by me once a week.
過去完成時、
She said that she had finished her job.
She said that her job had been finished by her.
現(xiàn)在完成時、
I have finished my homework.
My homework has been finished by me.
現(xiàn)在進行時、
I am doing my homework now.
My homework is being done by me now.
過去將來時、
He was going to visit Beijing the next month.
Beijing was going to be visited by him the next month.
一般將來時
I will do my homework tomorrow.
My homework will be done by me tomorrow.