| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adv] to maintain | 18 |
|
| 2 | [adv] enough to maintain | 9 |
|
| 3 | [adv] enough to maintain | 9 |
|
| 4 | [adv] [adv] to maintain | 9 |
|
| 5 | not [adv] to maintain | 7 |
|
| 6 | [not/n't] [adv] to maintain | 7 |
|
| 7 | not [adv] to maintain | 7 |
|
