| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [adv prt] what 's [v-ing] on | 8 |
|
| 2 | [vb infin] out what [is] [v-ing] on | 8 |
|
| 3 | [vb infin] [adv prt] what [is] going on | 8 |
|
| 4 | find [adv prt] what [is] [v-ing] on | 6 |
|
