| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] what [noun pl] [modal v] [be] | 54 |
|
| 2 | [v-ing] [pron] [noun pl] [modal v] [be] | 46 |
|
| 3 | [v-ing] what [noun] [modal v] [be] | 16 |
|
