| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [vb infin] [prep] | 5745 |
|
| 2 | [pron] could [vb infin] [pn reflx] | 407 |
|
| 3 | could [vb infin] [pn reflx] [prep] | 177 |
|
| 4 | [pron] [vb infin] [pn reflx] [prep] | 124 |
|
