| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have yet [been] found | 13 |
|
| 2 | [verb] yet [been] found | 13 |
|
| 3 | not yet [been] found | 11 |
|
| 4 | [not/n't] yet [been] found | 11 |
|
| 5 | [adv] yet [been] found | 11 |
|
| 6 | has yet [been] found | 10 |
|
| 7 | [vb -s] yet [been] found | 10 |
|
| 8 | not yet [been] found | 10 |
|
| 9 | yet [been] found [prep] | 6 |
|
| 10 | yet [been] found [prep] | 6 |
|
