| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | extent to which it [vb mod] [vb infin] | 13 |
|
| 2 | extent [prep] which it [vb mod] [vb infin] | 13 |
|
| 3 | extent to which it [vb mod] [vb infin] | 13 |
|
| 4 | extent [prep] which it [vb mod] [vb infin] | 13 |
|
| 5 | extent [prep] which it [vb mod] [vb infin] | 13 |
|
