| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [pers pn] [vb infin] [pers pn] | 767 |
|
| 2 | [pers pn] [vb infin] [pers pn] [vb infin] | 384 |
|
| 3 | could [vb infin] [pers pn] [vb infin] | 200 |
|
