| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [not/n't] [vb pp] a [noun] | 1416 |
|
| 2 | [verb] [not/n't] [verb] a problem | 54 |
|
| 3 | [verb] [adv] [vb pp] a problem | 32 |
|
| 4 | [verb] [not/n't] [vb pp] [art] problem | 24 |
|
| 5 | [verb] [not/n't] [vb pp] [art] problem | 24 |
|
| 6 | [verb] [not/n't] [vb pp] a problem | 14 |
|
