Graded and ungraded adjectives
Pattern 16: ADJ enough n that
The adjective is followed by enough, a noun, and a that-clause. This pattern is less frequent than ADJ enough n to-inf (see Pattern 13 above). The that-clause indicates a consequence.
More than 100,000 children annually experience severe enough problems that they, or their parents, seek help.
Over just the past few weeks the peace-keeping force has been doing a good enough job that people feel safe to go back out on the streets.