| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] not have been [art] [adj] | 83 |
|
| 2 | may [adv] have been [art] [adj] | 49 |
|
| 3 | may not [verb] been [art] [adj] | 21 |
|
| 4 | may not have [be] [art] [adj] | 21 |
|
| 5 | may not have be [art] [adj] | 21 |
|
| 6 | may not have been [art] [adj] | 21 |
|
| 7 | may [not/n't] have been [art] [adj] | 21 |
|
| 8 | may not have been [art] [adj] | 21 |
|
| 9 | may not have [been] [art] [adj] | 21 |
|
