| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it [verb] [verb] | 3955 |
|
| 2 | when it [verb] [verb] | 538 |
|
| 3 | [subord] when it [verb] | 62 |
|
| 4 | [subord] when [verb] [verb] | 5 |
|
