| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [vb infin] a [noun] | 22978 |
|
| 2 | [modal v] [vb infin] a [noun] | 22978 |
|
| 3 | could [vb infin] [art] [noun] | 8228 |
|
| 4 | could [verb] a [noun] | 2761 |
|
| 5 | could [vb infin] a [noun] | 2758 |
|
