| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [not/n't] [verb] [noun sg] [prep] | 1010 |
|
| 2 | [vb mod] [not/n't] [verb] [noun sg] [prep] | 1010 |
|
| 3 | could [adv] [verb] [noun sg] [prep] | 322 |
|
| 4 | could [not/n't] [verb] [noun] [prep] | 261 |
|
| 5 | could [not/n't] [verb] [noun sg] [prep] | 165 |
|
