| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | when [pron] [conj] | 398 |
|
| 2 | [conj] it [conj] | 155 |
|
| 3 | [subord] it [conj] | 75 |
|
| 4 | when it [conj] | 10 |
|
