| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when it [is] [adv] [verb] | 91 |
|
| 2 | [vb pp] when it [is] [verb] | 36 |
|
| 3 | [vb pp] when it [is] [adv] | 19 |
|
| 4 | [vb pp] it [is] [adv] [verb] | 19 |
|
