| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [prep] [art] [adj] | 960 |
|
| 2 | may have been [art] [adj] | 172 |
|
| 3 | may have been [prep] [art] | 59 |
|
| 4 | may have been [prep] [adj] | 33 |
|
| 5 | may have [prep] [art] [adj] | 14 |
|
