| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [pers pn] know | 42 |
|
| 2 | could [verb] [pers pn] know | 42 |
|
| 3 | could let [pers pn] know | 40 |
|
| 4 | could let [pers pn] know | 40 |
|
| 5 | could [verb] me know | 33 |
|
