| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] could [vb infin] a [noun sg] | 1389 |
|
| 2 | [vb past] [pers pn] [vb infin] a [noun sg] | 360 |
|
| 3 | [vb past] [pers pn] could [vb infin] a | 93 |
|
| 4 | [vb past] [pers pn] could [vb infin] [noun sg] | 43 |
|
