| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] be [verb] [prep] [verb] | 124 |
|
| 2 | [pron] [vb mod] be use [prep] [verb] | 47 |
|
| 3 | it [vb mod] [be] use [prep] [verb] | 12 |
|
| 4 | it [modal v] be use [prep] [verb] | 12 |
|
