| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have [been] [verb] [prep] a | 341 |
|
| 2 | [modal v] have [been] [verb] in [art] | 209 |
|
| 3 | [modal v] have [been] [verb] in [art] | 209 |
|
| 4 | [modal v] have [been] [verb] in a | 50 |
|
| 5 | [modal v] [verb] [been] [verb] in a | 38 |
|
| 6 | [modal v] have [be] [verb] in a | 38 |
|
