| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | know which [prep] [pers pn] | 10 |
|
| 2 | know which of [pers pn] | 10 |
|
| 3 | know which [prep] [pers pn] | 6 |
|
| 4 | know which [prep] them | 5 |
|
