| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [to-vb] [prep] [noun] | 41249 |
|
| 2 | [prep] [noun] when | 6687 |
|
| 3 | [to-vb] [noun] when | 349 |
|
| 4 | [to-vb] [prep] when | 32 |
|
