| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what 's been [verb] to | 13 |
|
| 2 | what 's be [v-ing] to | 7 |
|
| 3 | what 's be happening to | 6 |
|
| 4 | what 's be happen to | 6 |
|
| 5 | what 's be [vb pp] to | 6 |
|
