1. We clean the kitchen every day

     S      V              O

-> The kitchen is cleaned (by us) every day

* Dấu hiệu: Everyday-> Điền thì hiện tại đơn

2. People grow rice in these field

         S         V     O

-> The field was grown rice (by the people) in the field

3. Miss Thanh taught me to draw the Christmas card 

           S               V      O         

-> I was taught to draw the Chrismas card (by Miss Thanh)

4. Bell invented the telephone in 1876.

-> The telephone was invented (by Bell) in 1876

* Dấu hiệu: In 1876 -> Thì quá khứ đơn

→ Ta có câu (1) và câu (2)

⇒ Cấu trúc: S+ am/is/ are+ V-ed/ PII (+ by O)

→ Câu (3) và câu (4):

⇒ Cấu trúc: S+ was/ were+ V-ed/ PII (+ by O)

Cấu trúc:

$S+be+V_2(+by$ $O)$