| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [is] [v-ing] on [adj] | 13 |
|
| 2 | what [is] [v-ing] on [det] | 11 |
|
| 3 | what [is] going on [adj] | 10 |
|
| 4 | what 's [v-ing] on [adj] | 10 |
|
