| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what extent [noun] | 42 |
|
| 2 | what extent [noun] | 42 |
|
| 3 | what extent [noun pl] | 16 |
|
| 4 | what extent [noun sg] | 16 |
|
| 5 | what extent [noun prp] | 8 |
|
