| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [pron] [modal v] [verb] | 4324 |
|
| 2 | [pron] [indef pn] [modal v] [verb] | 484 |
|
| 3 | [Wh det] [indef pn] [modal v] [verb] | 379 |
|
| 4 | which [indef pn] [modal v] [verb] | 205 |
|
