| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [not/n't] [adv] [noun] | 42 |
|
| 2 | [modal v] [not/n't] [adv] [noun] | 42 |
|
| 3 | could [adv] [adv] [noun] | 9 |
|
| 4 | could [not/n't] [adv] [noun] | 6 |
|
