| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb mod] [vb infin] [adj] | 1985 |
|
| 2 | which [modal v] [vb infin] [adj] | 1985 |
|
| 3 | [pron] should [vb infin] [adj] | 1767 |
|
| 4 | which should [verb] [adj] | 60 |
|
| 5 | which should [vb infin] [adj] | 60 |
|
