| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [vb mod] [noun] | 402 |
|
| 2 | how [modal v] [noun] | 402 |
|
| 3 | [adv] should [noun] | 227 |
|
| 4 | how should [noun] | 31 |
|
