| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] have been [art] [adj] | 1632 |
|
| 2 | may have been [art] [adj] | 172 |
|
| 3 | [ex0] may have been [adj] | 55 |
|
| 4 | [ex0] may have been [art] | 49 |
|
