| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [not/n't] [verb] [prep] [art] [noun] | 449 |
|
| 2 | could [not/n't] [verb] [prep] [art] [noun] | 449 |
|
| 3 | [modal v] [not/n't] [verb] [prep] a [noun] | 445 |
|
| 4 | [vb mod] [not/n't] [verb] [prep] a [noun] | 445 |
|
| 5 | could [adv] [verb] [prep] a [noun] | 176 |
|
| 6 | could [not/n't] [verb] [prep] a [noun] | 97 |
|
| 7 | could [not/n't] [verb] [prep] a [noun] | 87 |
|
