| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [verb] to maintain | 12 |
|
| 2 | [not/n't] [adj] to maintain | 10 |
|
| 3 | [not/n't] [vb infin] to maintain | 10 |
|
| 4 | [not/n't] [adj] to maintain | 10 |
|
| 5 | [not/n't] [adv] to maintain | 7 |
|
| 6 | [not/n't] [adv] to maintain | 7 |
|
