| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when he [verb] [prep] | 1940 |
|
| 2 | when [pron] [verb] at | 1015 |
|
| 3 | [conj] he [verb] at | 931 |
|
| 4 | [subord] he [verb] at | 616 |
|
| 5 | when he [verb] at | 192 |
|
