| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] a [noun] | 2453 |
|
| 2 | [verb] a [noun] [vb infin] | 931 |
|
| 3 | could a [noun] [vb infin] | 47 |
|
| 4 | could [verb] [noun] [vb infin] | 44 |
|
