| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] | 477791 |
|
| 2 | [vb pp] [prep] [pron] | 78225 |
|
| 3 | be [prep] [pron] | 19198 |
|
| 4 | be [vb pp] [pron] | 7278 |
|
