I have eaten a burger.A burger has been eaten by me.A burger had been eaten by me.A burger was being eaten by me.A burger is being eaten by me. Read Notes
Kamran has paid the bill.The bill had been paid by Kamran.The bill has been paid by Kamran.The bill was being paid by Kamran.The bill is being paid by Kamran. Read Notes
We have cycled five miles.Five miles have been cycled by us.Five miles had been cycled by us.Five miles will be cycled by us.Five miles have been cycled by us. Read Notes
They have not read the book.The book had not been read by them.The book was not read by them.The book has not been read by them.The book is not being read by them. Read Notes
I have opened the present.The present has been opened by me.The present had been opened by me.The present was being opened by me.The present is being opened by me. Read Notes
You have not sent the parcel.The parcel has not been sent by you.The parcel had not been sent by you.The parcel is not being sent by you.The parcel was not being sent by you. Read Notes