| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what is [verb] | 4093 |
|
| 2 | what [be] happen | 2019 |
|
| 3 | what be happen | 2019 |
|
| 4 | what [is] happen | 1302 |
|
| 5 | [pron] is happen | 707 |
|
