| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | extent [prep] which [pron] can [verb] | 14 |
|
| 2 | extent [prep] which [pron] can [vb infin] | 14 |
|
| 3 | extent to which [pron] can [verb] | 14 |
|
| 4 | extent [prep] which [pers pn] can [verb] | 11 |
|
| 5 | extent [prep] which they can [verb] | 5 |
|
| 6 | extent [prep] which they can [verb] | 5 |
|
