| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] may have been [verb] a | 10 |
|
| 2 | [pron] may have been [verb] a | 10 |
|
| 3 | [pron] may have been [verb] a | 10 |
|
| 4 | [pron] may have been [v-ing] a | 6 |
|
| 5 | he may have been [verb] a | 5 |
|
| 6 | he may have been [verb] a | 5 |
|
