| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] did it [det] | 18 |
|
| 2 | how [verb] it [det] | 16 |
|
| 3 | [Wh adv] did it [det] | 16 |
|
| 4 | how do it [det] | 10 |
|
| 5 | how did [pron] [det] | 8 |
|
| 6 | how did it [adj] | 7 |
|
| 7 | how [vb past] it [det] | 5 |
|
| 8 | how did it [det] | 5 |
|
