| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [adv] [vb past] [verb] | 36 |
|
| 2 | what [adv] [verb] happen | 19 |
|
| 3 | [pron] [adv] [vb past] happen | 16 |
|
| 4 | what [adv] [vb past] happen | 8 |
|
| 5 | [Wh det] [adv] [vb past] happen | 8 |
|
