| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [v-ing] [pron] [verb] | 2629 |
|
| 2 | [v-ing] when [pron] [verb] | 469 |
|
| 3 | [prep] when [pron] [verb] | 165 |
|
| 4 | [prep] [v-ing] when [pron] | 95 |
|
| 5 | [prep] [v-ing] when [verb] | 7 |
|
