He drives worse as me.
He drives worse than I do. / He drives worse than me.
This is best movie I've ever seen.
This is the best movie I've ever seen.
I don't speak French as well that she does.
I don't speak French as well as she does.
The island was the more beautiful place I've ever visited.
The island was the most beautiful place I've ever visited.
I'm a good runner but Tom's the faster in the school.
I'm a good runner but Tom's the fastest in the school.
This book is least interesting than the last one.
This book is less interesting than the last one.
She isn't friendly as her sister.
She isn't as friendly as her sister.
The weather is not as cold than it was.
The weather is not as cold as it was.