| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we [verb] [prep] a | 1595 |
|
| 2 | when we [verb] [prep] | 1138 |
|
| 3 | when [verb] [prep] a | 590 |
|
| 4 | when we [verb] a | 200 |
|
