| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what was happen [prep] the | 73 |
|
| 2 | [Wh det] was happening [prep] the | 72 |
|
| 3 | [Wh det] was happen in the | 32 |
|
| 4 | [Wh det] was happen to the | 16 |
|
| 5 | [Wh det] was happen at the | 9 |
|
| 6 | [Wh det] was happen on the | 9 |
|
| 7 | [Wh det] was to happen [prep] the | 5 |
|
