| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] to some extent | 33 |
|
| 2 | [vb mod] [prep] some extent | 33 |
|
| 3 | [vb mod] to some extent | 33 |
|
| 4 | [vb mod] [prep] some extent | 33 |
|
| 5 | can [prep] some extent | 14 |
|
| 6 | may [prep] some extent | 7 |
|
| 7 | must [prep] some extent | 5 |
|
