| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what extent do [noun] | 9 |
|
| 2 | [pron] extent do [noun] | 9 |
|
| 3 | what extent do [noun] | 9 |
|
| 4 | [Wh det] extent do [noun] | 9 |
|
| 5 | [pron] extent do [noun] | 8 |
|
| 6 | [pron] extent do [noun pl] | 5 |
|
