| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [adv] [vb past] what | 356 |
|
| 2 | [pron] [vb past] what happen | 44 |
|
| 3 | [pron] [adv] [vb past] happen | 16 |
|
| 4 | [adv] [vb past] what happen | 13 |
|
| 5 | [pron] [adv] what happen | 11 |
|
