`1)` are having

`2)` is reading

`3)` Are the students going

`4)` are brushing

`5)` are traveling

`7)` isn't doing `-` is sleeping

`8)` aren't working `-` are doing

`9)` isn't doing `-` is watching

`10)` Is Nga reading .... `?`

`11)` are they playing

`12)` Are the children washing

`13)` Is your mother traveling 

`14)` Is Mr Hung reading `-` is listening

`15)` Is She traveling

`16)` is going

`17)` is crying

`18)` is sitting

`19)` are trying

`-` Hiện tại tiếp diễn ( HTTD): tính chất tạm thời

`-` Đang xảy ra

`-` Chê bai ( tobe always)

`@` Cấu trúc:

`( + )` S + am/is/are + V-ing

`( - )` S + am/is/are not + V-ing

`( ? )` Am/is/are + S + V-ing `?`

I `to` am

He, she, it hoặc N ( số ít) `to` is

You, we, they hoặc N ( số nhiều) `to` are

`@` DHNB:

`-` At the moment `=` at present `=` right now `=` now

`-` Look `-` listen `-` be quiet

`#Ph`