| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | may have [been] [conj] [prep] | 6 |
|
| 2 | may have be [conj] [prep] | 6 |
|
| 3 | may have been [conj] [prep] | 6 |
|
| 4 | may have [be] [conj] [prep] | 6 |
|
