Adriana can't play the piano, (a)  

The children haven't heard the news, (a)  

That car wasn't very fast, (a)  

Sheyla doesn't like pasta and spaghetti, (a)  

It's a little bit early, (a)  

I am not in the correct class, (a)  

Peter is never happy, (a)  

This isn't a wonderful fair, (a)  

There aren't many good restaurants here, (a)  

There isn't an umbrella, (a)  

We have never seen that, (a)  

We aren't going to come tonight, (a)  

She has a terrible cold, (a)