| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could [vb infin] [conj] [verb] | 717 |
|
| 2 | we could [vb infin] [verb] | 439 |
|
| 3 | we could [vb infin] [conj] | 175 |
|
| 4 | we [vb infin] [conj] [verb] | 95 |
|
