| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [verb] [verb] a [noun] | 928 |
|
| 2 | could [not/n't] [verb] a [noun] | 571 |
|
| 3 | could [verb] [verb] a [noun] | 217 |
|
| 4 | could [not/n't] [verb] [verb] a | 152 |
|
| 5 | could [not/n't] [verb] [verb] [noun] | 120 |
|
