| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may have been [art] [adj] | 172 |
|
| 2 | [Wh det] have been [art] [adj] | 144 |
|
| 3 | [Wh det] may have been [adj] | 25 |
|
| 4 | [Wh det] may have been [art] | 25 |
|
| 5 | [Wh det] may have [art] [adj] | 17 |
|
