| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] [prep] | 477793 |
|
| 2 | [modal v] [be] [vb pp] | 151916 |
|
| 3 | [modal v] [be] [prep] | 14387 |
|
| 4 | [modal v] [vb pp] [prep] | 35 |
|
