| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] have been [det] [noun] | 173 |
|
| 2 | may have been [adj] [noun] | 90 |
|
| 3 | may have [be] [det] [noun] | 21 |
|
| 4 | may have [been] [det] [noun] | 21 |
|
| 5 | may [verb] been [det] [noun] | 21 |
|
| 6 | may have be [det] [noun] | 21 |
|
