| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] of be | 426 |
|
| 2 | [vb mod] of [be] | 426 |
|
| 3 | [vb mod] [prep] been | 422 |
|
| 4 | [vb mod] of [been] | 422 |
|
| 5 | [modal v] of been | 422 |
|
