| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] could [vb infin] [pron] | 15 |
|
| 2 | [vb base] could [verb] [pers pn] | 11 |
|
| 3 | [vb base] could [verb] them | 5 |
|
| 4 | [vb base] could [verb] they | 5 |
|
