| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which have yet [prep] | 30 |
|
| 2 | [Wh det] have yet to | 30 |
|
| 3 | [Wh det] have yet [prep] | 16 |
|
| 4 | [Wh det] has yet [prep] | 10 |
|
