| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] when it [verb] | 535 |
|
| 2 | [coord] when [pron] arrive | 91 |
|
| 3 | [conj] when it arrive | 9 |
|
| 4 | [coord] [conj] it arrive | 9 |
|
