| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know [subord] [pers pn] have been [verb] | 12 |
|
| 2 | know [subord] [pron] have been [vb pp] | 8 |
|
| 3 | know whether [pron] have been [verb] | 6 |
|
| 4 | know if [pron] have been [verb] | 5 |
|
