| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of [Wh det] have to | 27 |
|
| 2 | [prep] [Wh det] had to | 22 |
|
| 3 | [prep] which have to | 21 |
|
| 4 | [prep] what have to | 21 |
|
| 5 | [prep] [Wh det] has to | 16 |
|
| 6 | [prep] [Wh det] have to | 5 |
|
