| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [verb] [adv] | 2935 |
|
| 2 | when [pron] [verb] a | 2312 |
|
| 3 | [pron] [verb] [adv] a | 2201 |
|
| 4 | when [verb] [adv] a | 6 |
|
