| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [v-ing] at the | 391 |
|
| 2 | [verb] when [v-ing] the | 153 |
|
| 3 | when [v-ing] at the | 45 |
|
| 4 | [verb] when [v-ing] at | 21 |
|
