| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] it [be] [verb] | 1956 |
|
| 2 | when it [be] [verb] | 1501 |
|
| 3 | [pron] when it [verb] | 146 |
|
| 4 | [pron] when it [be] | 132 |
|
