| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] out what [is] going on | 51 |
|
| 2 | find out what [is] going on | 39 |
|
| 3 | [verb] out what 's going on | 36 |
|
| 4 | [to-vb] out what [is] going on | 28 |
|
| 5 | to find out what [is] going on | 22 |
|
| 6 | [verb] out what is going on | 15 |
|
| 7 | [vb base] out what [is] going on | 8 |
|
| 8 | [vb infin] out what [is] going on | 8 |
|
| 9 | find out what [is] going on | 7 |
|
| 10 | work out what [is] going on | 6 |
|
| 11 | find out what [is] going on | 6 |
|
