| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been [adj] [noun] for | 151 |
|
| 2 | may have been [adj] [noun] | 90 |
|
| 3 | may have [adj] [noun] for | 50 |
|
| 4 | may have been [adj] for | 29 |
|
