| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv prt] what [be] going on | 80 |
|
| 2 | [adv prt] what be [v-ing] on | 80 |
|
| 3 | [adv prt] what [be] [v-ing] on | 80 |
|
| 4 | out what [be] [v-ing] on | 79 |
|
| 5 | [adv prt] what [is] [v-ing] on | 53 |
|
| 6 | [adv prt] what 's [v-ing] on | 37 |
|
| 7 | [adv prt] what was [v-ing] on | 27 |
|
| 8 | [adv prt] what [was/were] [v-ing] on | 27 |
|
| 9 | [adv prt] what is [v-ing] on | 16 |
|
