| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] what happen to | 64 |
|
| 2 | [adv] what happened to | 42 |
|
| 3 | so what happen to | 25 |
|
| 4 | [adv] what happens to | 22 |
|
| 5 | exactly what happen to | 14 |
|
| 6 | just what happen to | 6 |
|
