| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [subord] [adv] [pron] could | 58 |
|
| 2 | [vb past] [conj] [adv] [pron] could | 39 |
|
| 3 | [vb past] [subord] [adv] [pron] [vb mod] | 28 |
|
| 4 | [vb past] [subord] [adv] [pron] [modal v] | 28 |
|
| 5 | [vb past] [subord] [adv] [pron] could | 22 |
|
| 6 | [vb past] [subord] [adv] [pron] could | 22 |
|
