| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [pron] know [adv] | 6 |
|
| 2 | could [verb] [pers pn] know [adv] | 6 |
|
| 3 | could let [pron] know [adv] | 6 |
|
| 4 | could let [pron] know [adv] | 6 |
|
| 5 | could [verb] [pron] know [adv] | 6 |
|
| 6 | could [verb] [pron] know [adv] | 5 |
|
| 7 | could [verb] i know [adv] | 5 |
|
| 8 | could [verb] me know [adv] | 5 |
|
