| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how do [pers pn] know [Wh pn] | 7 |
|
| 2 | how do [pron] know [Wh pn] | 7 |
|
| 3 | how do [pron] know [Wh pn] | 7 |
|
| 4 | how do [pron] know who | 6 |
|
| 5 | how do [pron] know [Wh pn] | 6 |
|
