| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to what extent [modal v] the [noun] | 10 |
|
| 2 | [prep] what extent [modal v] the [noun] | 10 |
|
| 3 | [prep] what extent [modal v] the [noun] | 10 |
|
| 4 | to what extent [modal v] the [noun] | 10 |
|
