| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may have been [art] [adj] | 172 |
|
| 2 | which have been [art] [adj] | 77 |
|
| 3 | which may have been [adj] | 22 |
|
| 4 | which may have [art] [adj] | 17 |
|
| 5 | which may have been [art] | 11 |
|
