| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [vb mod] [prep] [be] | 108 |
|
| 2 | [prep] what [modal v] [prep] [be] | 108 |
|
| 3 | [prep] [pron] ought [prep] [be] | 28 |
|
| 4 | [prep] what ought [prep] [be] | 21 |
|
