| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] a [noun] | 2451 |
|
| 2 | they could [vb infin] [noun] | 287 |
|
| 3 | they could [vb infin] a | 233 |
|
| 4 | they [vb infin] a [noun] | 110 |
|
