| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] [prep] [adv] a [noun] | 63 |
|
| 2 | [to-vb] [prep] how [art] [noun] | 23 |
|
| 3 | [verb] [prep] how a [noun] | 20 |
|
