| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when it be [verb] and | 24 |
|
| 2 | when it be [vb pp] and | 18 |
|
| 3 | when it was [verb] and | 13 |
|
| 4 | when it is [verb] and | 7 |
|
| 5 | when it be [v-ing] and | 6 |
|
