| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [pron] [modal v] | 3380 |
|
| 2 | [pron] [modal v] [noun] | 1658 |
|
| 3 | how [pron] [noun] | 917 |
|
| 4 | how [modal v] [noun] | 402 |
|
