| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [modal v] [verb] [art] [adj] | 898 |
|
| 2 | [modal v] [verb] at [art] [adj] | 251 |
|
| 3 | which [verb] at [art] [adj] | 69 |
|
| 4 | which [modal v] [verb] at [art] | 30 |
|
