| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [det] could not have | 5 |
|
| 2 | [det] [noun] could not have | 21 |
|
| 3 | [det] [noun sg] could not have | 15 |
|
| 4 | [det] [noun pl] could not have | 6 |
|
| 5 | [det] could not have be | 8 |
|
| 6 | [det] could not have [been] | 8 |
|
| 7 | [det] could not have [verb] | 8 |
|
| 8 | [det] could not have [vb pp] | 8 |
|
| 9 | [det] could not have [be] | 8 |
|
| 10 | [det] could not have been | 8 |
|
