| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] is | 24134 |
|
| 2 | [vb pp] [be] | 12206 |
|
| 3 | [vb pp] be | 12183 |
|
| 4 | [vb pp] [is] | 5833 |
|
