| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have yet [to-vb] [prep] [noun sg] | 11 |
|
| 2 | have yet [to-vb] [prep] [noun sg] | 11 |
|
| 3 | has yet [to-vb] [prep] [noun sg] | 6 |
|
