| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have [been] [prep] [det] | 140 |
|
| 2 | [noun] may have [been] [prep] | 66 |
|
| 3 | may have [been] [prep] [det] | 13 |
|
| 4 | [noun] may have [been] [det] | 6 |
|
| 5 | [noun] may have [prep] [det] | 5 |
|
