| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [pron] should | 629 |
|
| 2 | [prep] who [modal v] | 254 |
|
| 3 | [prep] [Wh pn] should | 91 |
|
| 4 | [prep] who should | 81 |
|
| 5 | [prep] who should | 81 |
|
