| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [is] going on | 1102 |
|
| 2 | what 's [v-ing] on | 735 |
|
| 3 | what is [v-ing] on | 381 |
|
| 4 | what [is] goin' on | 14 |
|
