| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [unc] how do it [vb infin] | 10 |
|
| 2 | [no cls] how [verb] it [vb infin] | 9 |
|
| 3 | [unc] how did it [vb infin] | 6 |
|
| 4 | [unc] how [vb past] it [vb infin] | 6 |
|
