| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [noun] [noun] | 2236 |
|
| 2 | what [noun sg] [noun] | 982 |
|
| 3 | [pron] extent [noun] | 44 |
|
| 4 | [Wh det] extent [noun] | 43 |
|
| 5 | what extent [noun] | 42 |
|
| 6 | what extent [noun] | 42 |
|
