| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [coord] [vb mod] [not/n't] have been | 44 |
|
| 2 | [modal v] [coord] [vb mod] not have been | 44 |
|
| 3 | [modal v] [coord] [vb mod] not have been | 44 |
|
| 4 | [vb mod] [coord] [vb mod] [adv] have been | 44 |
|
| 5 | [modal v] or [vb mod] [adv] have been | 44 |
|
| 6 | [modal v] [coord] may [adv] have been | 31 |
|
| 7 | may [coord] [vb mod] [adv] have been | 31 |
|
| 8 | may [coord] [vb mod] [adv] have been | 31 |
|
| 9 | [modal v] [coord] might [adv] have been | 9 |
|
| 10 | might [coord] [vb mod] [adv] have been | 9 |
|
| 11 | might [coord] [vb mod] [adv] have been | 9 |
|
