| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [vb infin] for [noun] [prep] | 358 |
|
| 2 | [Wh pn] [modal v] [vb infin] [noun] [prep] | 298 |
|
| 3 | [Wh pn] [modal v] [vb infin] for [noun] | 25 |
|
