| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb mod] [verb] [verb] [pron] | 214 |
|
| 2 | [pron] [vb mod] [verb] [vb infin] [pron] | 79 |
|
| 3 | which [modal v] [verb] [vb infin] [pron] | 14 |
|
