| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] the problem [vb mod] [not/n't] be | 8 |
|
| 2 | the problem [vb mod] [not/n't] be [vb pp] | 12 |
|
| 3 | the problem [vb mod] [not/n't] be [verb] | 12 |
|
