| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] have been [adj] | 1047 |
|
| 2 | it [modal v] have been [prep] | 226 |
|
| 3 | [modal v] have been [prep] [adj] | 213 |
|
| 4 | it [modal v] have [prep] [adj] | 10 |
|
