| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what happened [det] [noun] | 43 |
|
| 2 | [Wh det] happened [det] [noun sg] | 43 |
|
| 3 | [Wh det] happened that [noun] | 26 |
|
| 4 | [Wh det] happened this [noun] | 16 |
|
| 5 | [Wh det] happened [det] morning | 10 |
|
| 6 | [Wh det] happened [det] morning | 10 |
|
| 7 | [Wh det] happened [det] night | 9 |
|
| 8 | [Wh det] happened [det] night | 9 |
|
