| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] it [verb] | 4322 |
|
| 2 | how it [verb] | 1379 |
|
| 3 | how [vb past] it | 184 |
|
| 4 | how [vb past] [verb] | 10 |
|
