| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it is [adv] [vb pp] | 69 |
|
| 2 | when it is [adv] [vb pp] | 57 |
|
| 3 | [verb] when it is [vb pp] | 54 |
|
| 4 | [verb] when it is [adv] | 30 |
|
