1.一般現(xiàn)在時(shí):主語+do/does(現(xiàn)在分詞)
e.g We clean the room every day.
2.一般過去時(shí):主語+did
e.g We cleaned the room just now.
3.現(xiàn)在進(jìn)行時(shí):主語+am/is/are doing
e.g We are cleaning the room now.
4.過去進(jìn)行時(shí):was/were doing
e.g We were cheaning the room at 5:00 yesterday afternoon.
5.現(xiàn)在完成時(shí):have/has done
e.g.We have cleaned the room already.
6.過去完成時(shí):had done
e.g We had cleaned the room before he arrived.
7.一般將來時(shí):will do/
e.g We will clean the room tomorrow.
8.過去將來時(shí):was/were to /would do
e.g He said he would clean the room next.