| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [be] [vb pp] [subord] | 2772 |
|
| 2 | [be] [vb pp] so [subord] | 223 |
|
| 3 | [prep] [be] [vb pp] so | 186 |
|
| 4 | [prep] [be] so [subord] | 11 |
|
