| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how do [pron] [verb] [pers pn] | 461 |
|
| 2 | do [pron] [verb] when [pers pn] | 67 |
|
| 3 | how [pron] [verb] when [pers pn] | 43 |
|
| 4 | how do [pron] [verb] when | 11 |
|
