| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [Wh pn] have yet [to-vb] [art] | 6 |
|
| 2 | [Wh pn] have yet [to-vb] [art] [noun sg] | 8 |
|
| 3 | [Wh pn] have yet [to-vb] [art] [noun] | 8 |
|
