| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [verb] | 58937 |
|
| 2 | [v-ing] [pron] [verb] | 12771 |
|
| 3 | [v-ing] when [pron] | 763 |
|
| 4 | [v-ing] when [verb] | 48 |
|
