| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] could [verb] a [adj] | 288 |
|
| 2 | could [not/n't] [verb] a [adj] | 249 |
|
| 3 | [noun sg] could [not/n't] [verb] [adj] | 129 |
|
| 4 | [noun sg] could [not/n't] [verb] a | 67 |
|
| 5 | [noun sg] [not/n't] [verb] a [adj] | 32 |
|
