| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not have [vb pp] a [adj] | 25 |
|
| 2 | could not have [verb] a [adj] | 25 |
|
| 3 | could not have [been] a [adj] | 5 |
|
| 4 | could not have [be] a [adj] | 5 |
|
| 5 | could not have been a [adj] | 5 |
|
| 6 | could not have be a [adj] | 5 |
|
| 7 | could not have a [adj] [noun sg] | 5 |
|
| 8 | could not have a [adj] [noun] | 5 |
|
