| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [modal v] [adv] [verb] when | 10 |
|
| 2 | it [vb mod] [adv] [verb] when | 10 |
|
| 3 | it [modal v] [adv] [vb infin] when | 10 |
|
| 4 | it will [adv] [verb] when | 7 |
|
