| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [pron] could [adv] [vb infin] | 743 |
|
| 2 | know [subord] [pron] could [vb infin] | 46 |
|
| 3 | know [pron] could [adv] [vb infin] | 41 |
|
| 4 | know [subord] [pron] could [adv] | 7 |
|
