| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [be] | 6739 |
|
| 2 | what [modal v] [be] | 2567 |
|
| 3 | [prep] what [modal v] | 2049 |
|
| 4 | [prep] [modal v] [be] | 221 |
|
