`1`/
`(-)` I am not at home now
`(?)` Am i at home now ?
`2`/
`(-)` They are not from USA.
`(?)` Are they from USA ?
`3`/
`(-)` There isn't a pen on the desk.
`(?)` Is there a pen on the desk ?
`4`/
`(-)` My name isn't Nobita.
`(?)` Is my name Nobita ?
`5`/
`(-)` Tom and Maria aren't married.
`(?)`: Are Tom and Maria married ?
Áp dụng công thức này
I + am / am not / Am i .... ?
He, she, it + is / is not (isn't) / Is + he / she / it + ..... ?
You, we, they + are / are not ( aren't ) / Are + we / they / you + ..... ?
