| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [vb pp] to some extent | 13 |
|
| 2 | [been] [vb pp] [prep] some extent | 13 |
|
| 3 | [been] [vb pp] to some extent | 13 |
|
| 4 | [been] [vb pp] [prep] some extent | 13 |
|
| 5 | been [vb pp] [prep] some extent | 13 |
|
