| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] be [verb] is | 14 |
|
| 2 | it [vb mod] be [vb pp] is | 14 |
|
| 3 | it [vb mod] be [verb] is | 14 |
|
| 4 | it should be [verb] is | 5 |
|
