| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [verb] [prep] [be] | 1088 |
|
| 2 | [Wh pn] [modal v] [be] [verb] [prep] | 444 |
|
| 3 | [Wh pn] [modal v] [verb] [prep] [be] | 64 |
|
