| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [vb past] what happened | 7 |
|
| 2 | [conj] [vb past] what happened | 7 |
|
| 3 | [conj] [vb past] [Wh det] happened | 7 |
|
| 4 | [coord] [vb past] [pron] happened | 6 |
|
| 5 | and [vb past] [pron] happened | 5 |
|
| 6 | and [vb past] [pron] happened | 5 |
|
