| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] we [modal v] [verb] | 8 |
|
| 2 | could [vb infin] we [vb mod] [verb] | 8 |
|
| 3 | could [vb infin] we [modal v] [verb] | 8 |
|
| 4 | could [vb infin] we [modal v] [vb infin] | 7 |
|
