`1.` Peter doesn't go to the party.

`2.` His schoolbag isn't brown.

`3.` We don't meet our friends.

`4.` Pat isn't a clever boy.

`5.` The monkey doesn't take the banana.

`6.` Tim doesn't have a brother.

`7.` They aren't at Sarah's party.

`8.` I don't like apples.

`9.` They aren't at home.

`10.` My mother doesn't speak Spanish.

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Thì hiện tại đơn:

`-` Với động từ to be:

$(+)$ S + am/is/are + N/adj

$(-)$ S + am/is/are + not + N/adj

`@` Chú ý:

are not `=` aren't

is not `=` isn't

`-` Với động từ thường:

$(+)$ S + V(s/es)

$(-)$ S + do/does + not + V

`@` Chú ý:

do not `=` don't

does not `=` doesn't