| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [pers pn] [vb infin] i | 294 |
|
| 2 | [pers pn] [vb infin] i [vb infin] | 141 |
|
| 3 | could [vb infin] i [vb infin] | 63 |
|
