1.the weather is fine. Mary and her little brother can go to school.

The weather is fine enough for Mary and her little brother to go to school.

2.the weather is go bad that's we can't go out.

The weather is too bad for us to go out.

3.he was so old that he couldn't run fast.

He was too old to run fast.

4.you speak so fast that I can't catch up with you words.

You speak too fast for us me catch up with you words.

5.It is so early that we can't go out.

It is too early for us to go out.

6. the water is so hot that I can't drink it.

The water is too hot for me to drink.

1 is fine enough ( S + be + adj + enough( for smb) + to V : đủ........)

2 too bad  ( S + be + too+ adj ( for smb) + to V : quá đến nỗi không làm gì được)

3 too old (( S + be + too+ adj ( for smb) + to V : quá đến nỗi không làm gì được)

4 too fast ( S + be + too+ adj ( for smb) + to V : quá đến nỗi không làm gì được)

5 too early ( S + be + too+ adj ( for smb) + to V : quá đến nỗi không làm gì được)

6 too hot ( S + be + too+ adj ( for smb) + to V : quá đến nỗi không làm gì được)