| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb base] [pers pn] could [vb infin] | 77 |
|
| 2 | only [vb base] [pers pn] [modal v] [vb infin] | 26 |
|
| 3 | only [verb] [pers pn] could [vb infin] | 22 |
|
| 4 | only [vb base] [pers pn] could [verb] | 18 |
|
| 5 | only [vb base] [pron] could [vb infin] | 18 |
|
