`1)`

`( ? )`Is your sister trying to pass the exam `?`

`( - )` My sister isn't  trying to pass the exam

`2)`

`( ? )` Are they going to market now `?`

`( - )` We aren't going to market now

`3)`

`( ? )`Is he listening to music now `?`

`( - )` He isn't listening to music now

`@` Cấu trúc thì HTTD:

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

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

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

`#Ph`

`color{#ffd0d0}{#}color{#ffdada}{L}color{#ffebd6}{o}color{#fff7e1}{s}color{#e6ffdd}{t}color{#d6f9ff}{:}color{#f0eaff}{}`

________________________________________

`1,`

`(-)` My sister is not trying to pass the exam`.`

`(?)` Is my sister trying to pass the exam`?`

`2,`

`(-)` We are not going to market now`.`

`(?)` Are we going to market now`?`

`3,`

`(-)` He is not listening to music now`.`

`(?)` Is he listening to music now`?`

___________________________

`@` Cấu trúc của thì hiện tại tiếp diễn`:`

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

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

`(?)` `text(Am/Is/Are + S + V-ing+...?`