| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] [noun] | 125389 |
|
| 2 | often [vb pp] [prep] [noun] | 1031 |
|
| 3 | often be [vb pp] [prep] | 422 |
|
| 4 | often be [prep] [noun] | 18 |
|
