| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [verb] [prep] a | 648 |
|
| 2 | we [modal v] [verb] [prep] a | 472 |
|
| 3 | we [vb mod] [verb] [prep] a | 472 |
|
| 4 | we could [verb] [prep] [art] | 186 |
|
| 5 | we could [verb] [prep] a | 72 |
|
