| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] to some extent | 83 |
|
| 2 | be [vb pp] [prep] some extent | 83 |
|
| 3 | be [vb pp] [prep] some extent | 20 |
|
| 4 | was [vb pp] [prep] some extent | 19 |
|
| 5 | is [vb pp] [prep] some extent | 14 |
|
| 6 | been [vb pp] [prep] some extent | 13 |
|
| 7 | are [vb pp] [prep] some extent | 11 |
|
| 8 | were [vb pp] [prep] some extent | 5 |
|
