| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [pron] [vb infin] [pers pn] | 780 |
|
| 2 | [pron] [vb infin] [pers pn] to | 408 |
|
| 3 | could [vb infin] [pers pn] to | 162 |
|
| 4 | could [pron] [vb infin] to | 99 |
|
