| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [noun prp] [modal v] [vb infin] of | 9 |
|
| 2 | [Wh det] [noun prp] [vb mod] [verb] of | 9 |
|
| 3 | what [noun prp] [modal v] [verb] of | 8 |
|
