| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we could [vb infin] | 4226 |
|
| 2 | [adv] we could | 762 |
|
| 3 | [adv] could [vb infin] | 661 |
|
| 4 | [adv] we [vb infin] | 545 |
|
