| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [verb] [pron] | 7870 |
|
| 2 | [adv] did [pron] | 5852 |
|
| 3 | how do [pron] | 5652 |
|
| 4 | [Wh adv] did [pron] | 4197 |
|
| 5 | how [vb past] [pron] | 1877 |
|
| 6 | how did [pron] | 1650 |
|
