| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [pron] could [verb] a | 94 |
|
| 2 | [vb past] [pers pn] could [verb] a | 93 |
|
| 3 | [vb past] we [modal v] [verb] a | 75 |
|
| 4 | [verb] we could [verb] a | 37 |
|
| 5 | [vb past] we could [verb] [art] | 24 |
|
| 6 | [vb past] we could [verb] [art] | 24 |
|
| 7 | [vb past] we could [verb] a | 13 |
|
| 8 | [vb past] we could [verb] a | 13 |
|
