1. He isn't old enough to vote.
He is too young to vote.
2. Algebra is too difficult for me to understand.
Algebra isn't easy for me to understand.
3. I can't drink this tea. It's too cold.
It's not warm.
4. The weather is not warm enough to go swimming.
The weather is too cold to go swimming
5. This book isn't easy enough for the children to read.
This book is difficult for the children to read.
6. That shirt is too small for me to wear.
That shirt isn't too big for me to wear.
7. The watch was too expensive for him to buy.
The watch wasn't cheap for him to buy.
8. It's not quiet enough in here to speak. Let's go out! It's too loud in here to speak.
