- Would you be good enough to keep silent?
- The merest noise is enough to wake him.
- I'm old enough to have the freedom to do as I like.
- We need several men strong enough to do the work.
- He is competent enough to fill that position.
- `How much money do you need?' `50 should be enough to be going on with.'
- Not even the thickest jacket was enough to keep out the cold.
- He ran fast enough to catch the thief.