| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [adv] [verb] [pron] [noun] | 1410 |
|
| 2 | could [adv] [verb] [pron] [noun] | 507 |
|
| 3 | [modal v] never [verb] [pron] [noun] | 212 |
|
| 4 | could never [verb] [pron] [noun] | 27 |
|
