1. Susan is too young to stay at home alone.
2. The weather is not warm enough to go out. 
3. The book is not interesting enough to read
4. These exercises are not easy enough for students to do. 
5. The situation is not easy enough to explain.
6. The man was not tall enough to climb over the wall.
7. This sofa isn't comfortable enough for three people.
8. She is not old enough to go to school herself.
9. I am too impatient to read a book.  
10. They are too poor to pay this bill. 
11. This novell is too boring to read. 
13. This man is too unfriendly for us to make friends with.
``
S + be + too + adj + (for sb) + to-V + O
= S + be (not) + adj (trái nghĩa) + for sb + to-V + O

Công thức: too...to.. (quá ... đến nỗi không)

S + be + too + ADJ + (for O) + to V 

Công thức enough....to... (đủ..để làm gì)

S + be + ADJ + enough + (for O) + to V 

S + V + ADV + enough + (for O) + to V 

S + be/V + enough + N + (for O) + to V 

--------------------------------------

1. Susan is too young to stay at home alone.

2. The weather isn't warm enough to go out.

3. The book isn't interesting enough to read.

4. These exercises aren't easy enough for students to do.

5. The situation isn't easy enough to explain.

6. The man wasn't tall enough to climb over the wall.

7. This sofa isn't comfortable enough for three people.

8. She isn't old enough to go to school herself.

9. I am too impatient to read a book.

10. They are too poor to pay this bill.

11. This novel is too boring to read.

12. This man is too unfriendly for us to make friends with.

`color{orange}{~LeAiFuRuiHuiBao~}`