| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which should have [verb] [pron] | 11 |
|
| 2 | which should [vb infin] [vb pp] [pron] | 11 |
|
| 3 | which should [vb infin] [verb] [pers pn] | 9 |
|
