| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [prep] a | 2948 |
|
| 2 | when it [verb] [prep] | 2068 |
|
| 3 | when [verb] [prep] a | 590 |
|
| 4 | when it [verb] a | 88 |
|
