| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adj] [conj] could | 147 |
|
| 2 | [not/n't] [adj] [conj] [vb mod] | 62 |
|
| 3 | [not/n't] [adj] [conj] [modal v] | 62 |
|
| 4 | [not/n't] [adj] [conj] could | 6 |
|
