| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [adv] [noun] | 2385 |
|
| 2 | could [not/n't] [adv] | 1863 |
|
| 3 | could [not/n't] [noun] | 78 |
|
| 4 | could [adv] [noun] | 49 |
|
