| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [verb] [prep] the | 1239 |
|
| 2 | [verb] at [prep] the | 279 |
|
| 3 | when [verb] at the | 61 |
|
| 4 | when [verb] at [prep] | 13 |
|
