| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] [pron] could [vb infin] | 765 |
|
| 2 | [coord] [pron] [pron] could [vb infin] | 97 |
|
| 3 | [coord] [prep] [pron] [pron] could | 45 |
|
