| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [pron] [modal v] do [pers pn] | 33 |
|
| 2 | know [pron] [modal v] do [pers pn] | 32 |
|
| 3 | know how [pron] [modal v] do | 8 |
|
