| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] may have been [verb] | 54 |
|
| 2 | [adj] may have been [verb] | 54 |
|
| 3 | [adj] may have been [vb pp] | 53 |
|
| 4 | [det] may have been [verb] | 48 |
|
| 5 | this may have been [verb] | 20 |
|
| 6 | this may have been [verb] | 20 |
|
| 7 | some may have been [verb] | 13 |
|
| 8 | some may have been [verb] | 13 |
|
| 9 | these may have been [verb] | 7 |
|
| 10 | these may have been [verb] | 7 |
|
| 11 | [num] may have been [verb] | 5 |
|
