| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] have to [be] | 130 |
|
| 2 | [Wh det] prove to [be] | 84 |
|
| 3 | have prove to [be] | 75 |
|
| 4 | [Wh det] have prove to | 6 |
|
