| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [det] [noun] [verb] | 322 |
|
| 2 | when [det] [noun] [verb] | 123 |
|
| 3 | when [modal v] [noun] [verb] | 11 |
|
| 4 | when [modal v] [det] [noun] | 11 |
|
