| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] have [be] | 3774 |
|
| 2 | it [vb mod] have [be] | 3774 |
|
| 3 | [pron] should have [be] | 992 |
|
| 4 | it should [verb] [be] | 234 |
|
| 5 | it should have [be] | 230 |
|
