| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [modal v] [art] [noun] | 441 |
|
| 2 | how [vb mod] [art] [noun] | 441 |
|
| 3 | [adv] could [art] [noun] | 137 |
|
| 4 | [Wh adv] could [art] [noun] | 105 |
|
| 5 | how could [art] [noun] | 101 |
|
| 6 | how could [art] [noun] | 101 |
|
