| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what [modal v] [prep] [be] | 108 |
|
| 2 | about [pron] [modal v] [prep] [be] | 5 |
|
| 3 | about what [modal v] [prep] [be] | 5 |
|
| 4 | about what [modal v] [prep] [be] | 5 |
|
| 5 | about [Wh det] [modal v] [prep] [be] | 5 |
|
