| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] [conj] it [is] | 318 |
|
| 2 | [conj] when it [is] | 239 |
|
| 3 | [subord] when it [be] | 73 |
|
| 4 | [subord] when [pron] [is] | 71 |
|
