| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can [adv] be [verb] to have been | 20 |
|
| 2 | [modal v] [not/n't] be [verb] to have been | 17 |
|
| 3 | [vb mod] [not/n't] be [verb] to have been | 17 |
|
| 4 | can [not/n't] be [verb] to have [be] | 12 |
|
| 5 | can [not/n't] [be] [verb] to have been | 12 |
|
| 6 | can [not/n't] be [verb] [verb] been | 12 |
|
| 7 | can [not/n't] be [verb] [to-vb] been | 12 |
|
| 8 | can [not/n't] [be] [verb] to have been | 12 |
|
| 9 | can [not/n't] be [verb] to have been | 12 |
|
| 10 | can [not/n't] be [verb] to have been | 12 |
|
| 11 | can [not/n't] be [verb] to have be | 12 |
|
| 12 | can [not/n't] be [verb] have been | 12 |
|
| 13 | can [not/n't] be [verb] to have [been] | 12 |
|
