| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who should [pron] [vb infin] | 16 |
|
| 2 | who should [pers pn] [verb] | 16 |
|
| 3 | who should i [verb] | 10 |
|
| 4 | who should i [verb] | 10 |
|
