| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [vb mod] [noun] | 402 |
|
| 2 | how [modal v] [noun] | 402 |
|
| 3 | [adv] could [noun] | 148 |
|
| 4 | [Wh adv] could [noun] | 107 |
|
| 5 | how could [noun] | 100 |
|
| 6 | how could [noun] | 100 |
|
