| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to find out what be going on | 29 |
|
| 2 | to find out [Wh det] 's going on | 15 |
|
| 3 | to find out [Wh det] is going on | 7 |
|
| 4 | to find out [Wh det] was going on | 7 |
|
