| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [noun] [verb] | 158230 |
|
| 2 | when [noun] [verb] | 8916 |
|
| 3 | when [noun prp] [verb] | 5376 |
|
| 4 | when [noun prp] [noun] | 3173 |
|
