| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [modal v] be | 1491 |
|
| 2 | about [pron] [modal v] be | 113 |
|
| 3 | about [Wh det] [modal v] be | 78 |
|
| 4 | about [Wh det] [modal v] [be] | 78 |
|
| 5 | about [Wh det] [modal v] [be] | 78 |
|
