| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] [vb past] when | 26 |
|
| 2 | it [adv] [vb -s] when | 23 |
|
| 3 | it always [verb] when | 11 |
|
| 4 | it only [verb] when | 11 |
|
| 5 | it [adv] do when | 5 |
|
| 6 | it [adv] did when | 5 |
|
