| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | did [pers pn] [verb] | 16270 |
|
| 2 | how [pers pn] [verb] | 8823 |
|
| 3 | how did [pers pn] | 1606 |
|
| 4 | how did [verb] | 6 |
|
