| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [vb mod] [verb] to | 1162 |
|
| 2 | [Wh det] [vb mod] [vb infin] to | 1157 |
|
| 3 | [pron] [vb mod] prove to | 82 |
|
| 4 | [Wh det] [modal v] prove to | 36 |
|
| 5 | [Wh det] [vb mod] prove to | 36 |
|
| 6 | [Wh det] [vb mod] prove [prep] | 36 |
|
