Question

This exercise is useful.use negative form

Answer 1

This exercise is not useful.

Answer 2

Forme négative :

I/we/you/they + do not (don't) + (work,like,have,do...etc.)

he/she/it +does not (doesn't) + (work,like,have,do...etc.)


Exemples :

I drink coffee but I don't drink tea.

The weather is usually nice.

It doesn't very often rain .