| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh det] [noun] [modal v] [vb infin] | 1012 |
|
| 2 | means [prep] [Wh det] [noun] [modal v] | 32 |
|
| 3 | means [prep] [noun] [modal v] [vb infin] | 7 |
|
