Answer :

Elles y regardent la télé : 
 
                        ⇒ Elles n'y regardent pas la télé.

The negative form of the sentence  "Elles y regardent la télé" is "Elles n'y regardent pas la télé".

What is a nagative form?

To make a negative verb form in french, you have to add "ne" and "pas". The "ne" part of the negation wull become "n'".

Hence, we can see that adding the "ne" and "pas" to the sentence to make it a nagtaive form will become Elles n'y regardent pas la télé.

Read more about negative forms here:

https://brainly.com/question/585301

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Elles n'y regardent pas la télé.