| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] have been some [noun] | 265 |
|
| 2 | [ex0] may have been [noun] | 27 |
|
| 3 | [ex0] may have been some | 17 |
|
| 4 | may have been some [noun] | 9 |
|
