| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [modal v] not [verb] [adj] | 251 |
|
| 2 | [conj] could [adv] [verb] [adj] | 106 |
|
| 3 | [conj] could [not/n't] [verb] [adj] | 63 |
|
| 4 | [conj] could not [verb] [adj] | 63 |
|
