| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [not/n't] [verb] [adv] [adv] [subord] | 138 |
|
| 2 | could [not/n't] [verb] [adv] [adv] [conj] | 33 |
|
| 3 | could [adv] [verb] [adv] [adv] [subord] | 31 |
|
