| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [verb] a [noun] | 2453 |
|
| 2 | could [vb infin] a [noun] | 2451 |
|
| 3 | [verb] [vb infin] a [noun] | 1522 |
|
| 4 | could [verb] [vb infin] [noun] | 17 |
|
| 5 | could [verb] [vb infin] a | 9 |
|
