| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] what be going on | 203 |
|
| 2 | know what be [v-ing] on | 104 |
|
| 3 | [vb infin] what 's [v-ing] on | 90 |
|
| 4 | [vb infin] what was [v-ing] on | 77 |
|
| 5 | see what be [v-ing] on | 37 |
|
| 6 | [vb infin] what is [v-ing] on | 36 |
|
| 7 | understand what be [v-ing] on | 25 |
|
| 8 | hear what be [v-ing] on | 7 |
|
