| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [pron] [modal v] | 7098 |
|
| 2 | case [pron] [modal v] | 765 |
|
| 3 | which case [pron] | 380 |
|
| 4 | which case [modal v] | 7 |
|
