| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [verb] [noun sg] | 28078 |
|
| 2 | when [verb] [noun sg] | 515 |
|
| 3 | [prep] when [verb] | 94 |
|
| 4 | [prep] when [noun sg] | 5 |
|
