| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | how [pron] [modal v] | 3380 |
|
| 2 | [is] how [pron] | 1321 |
|
| 3 | [is] [pron] [modal v] | 814 |
|
| 4 | [is] how [modal v] | 20 |
|
