| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] have [prep] [be] | 2904 |
|
| 2 | [modal v] have [prep] [be] | 2904 |
|
| 3 | should [verb] [prep] [be] | 158 |
|
| 4 | should have [prep] [be] | 9 |
|
