| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when it [be] [verb] [prep] | 484 |
|
| 2 | especially when it [verb] [prep] | 27 |
|
| 3 | especially when it [be] [verb] | 18 |
|
| 4 | especially when it [be] [prep] | 7 |
|
