`1.` The boy is intelligent enough to understand you.

`2.` Mai is good enough to pass the examination.

`3.` The girl isn't clever enough to mend this shirt.

`4.` This machine isn't powerful enough to plough the hard soil.

`5.` Your sister was clever enough to do this exercise in a few minutes.

`6.` Peter is ill enough to see the doctor.

`7.` Mary isn't old enough to do that work.

`8.` We weren't early enough to see the first part of the play.

`9.` The children were eager enough to started playing without me.

`10.` He is tall enough to play volleyball.

- Cấu trúc enough...to

- S + be (not) + adj + enough + (for somebody) + to V-inf + ...