| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] [pron] [noun] | 2497 |
|
| 2 | could [verb] [pron] [adv] | 834 |
|
| 3 | [verb] [pron] [adv] [noun] | 826 |
|
| 4 | could [verb] [adv] [noun] | 96 |
|
