| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] to some extent | 83 |
|
| 2 | [verb] [be] [vb pp] to some | 35 |
|
| 3 | [verb] [vb pp] to some extent | 16 |
|
| 4 | [verb] [be] to some extent | 6 |
|
