cíuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu

`1.` watch `->` watching

`2.` discuss `->` discussing

`3.` you `->` are you

`4.` have `->` having

`5.` they are `->` are they

`6.` out `->` out of 

`-` run out of sth : cạn kiệt thứ gì ...

`7.` do `->` are

`8.` your grandmother `->` is your grandmother

`@` Kiến thức thì hiện tại tiếp diễn : 

`-` Khẳng định : S + am/is/are + V-ing + .....      

`-` Phủ định : S + am/is/are not + V-ing + .....

`-` Nghi vấn : Am/is/are + S + V-ing ?

`-` Dấu hiệu: now, at the present,........