| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it 's [verb] [pron] | 616 |
|
| 2 | when it [verb] [pron] | 306 |
|
| 3 | when it 's [verb] | 127 |
|
| 4 | when it 's [pron] | 40 |
|
