| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] [det] | 25215 |
|
| 2 | be [vb pp] by [adj] | 18465 |
|
| 3 | be [verb] by [det] | 4963 |
|
| 4 | [be] [vb pp] by [det] | 4934 |
|
