| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] could [not/n't] [verb] a [adj] | 12 |
|
| 2 | [conj] could [not/n't] [vb infin] a [adj] | 12 |
|
| 3 | [conj] could [not/n't] [verb] a [adj] | 11 |
|
| 4 | and could [not/n't] [verb] a [adj] | 9 |
|
| 5 | [conj] could not [verb] a [adj] | 9 |
|
| 6 | and could [not/n't] [verb] a [adj] | 9 |
|
