| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] how [adv] | 1222 |
|
| 2 | how [adv] [vb mod] | 669 |
|
| 3 | [prep] [adv] [vb mod] | 366 |
|
| 4 | [prep] how [vb mod] | 31 |
|
