| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] [verb] a [adj] | 249 |
|
| 2 | [noun pl] could [verb] a [adj] | 106 |
|
| 3 | [noun pl] could [not/n't] [verb] [adj] | 68 |
|
| 4 | [noun pl] could [not/n't] [verb] a | 26 |
|
| 5 | [noun pl] [not/n't] [verb] a [adj] | 13 |
|
