| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [not/n't] [adv] [verb] [prep] [noun sg] | 72 |
|
| 2 | could [adv] [adv] [verb] [prep] [noun sg] | 32 |
|
| 3 | could [not/n't] [adv] [verb] [prep] [noun] | 28 |
|
