| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may have been [adj] that | 5 |
|
| 2 | may have be [adj] that | 5 |
|
| 3 | may have [be] [adj] that | 5 |
|
| 4 | may have [been] [adj] that | 5 |
|
