| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [modal v] [be] [verb] | 1450 |
|
| 2 | for what [be] [verb] | 146 |
|
| 3 | for what [modal v] [verb] | 54 |
|
| 4 | for what [modal v] [be] | 41 |
|
