| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] or [modal v] [adv] | 79 |
|
| 2 | [not/n't] or [vb mod] [adv] | 79 |
|
| 3 | [not/n't] [conj] could [adv] | 31 |
|
| 4 | [adv] or could [adv] | 11 |
|
| 5 | [not/n't] or could [adv] | 10 |
|
