| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how did [pron] | 1650 |
|
| 2 | [unc] did [pron] | 182 |
|
| 3 | [unc] how [pron] | 71 |
|
| 4 | [unc] how did | 47 |
|
