| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] be [vb pp] [prep] | 74296 |
|
| 2 | be [vb pp] [prep] a | 14911 |
|
| 3 | [modal v] be [prep] a | 1134 |
|
| 4 | [modal v] be [vb pp] a | 886 |
|
