| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to find out what be going on | 29 |
|
| 2 | [to-vb] out what 's going on | 18 |
|
| 3 | [to-vb] out what was going on | 16 |
|
| 4 | [to-vb] out what is going on | 10 |
|
| 5 | to work out what be going on | 6 |
|
