| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they could [vb infin] [prep] [art] | 191 |
|
| 2 | could [vb infin] [pn reflx] [prep] [art] | 74 |
|
| 3 | they could [vb infin] [pn reflx] [prep] | 12 |
|
