| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] what has happened [prep] [adj] | 7 |
|
| 2 | [prep] what has happened [prep] [adj] | 7 |
|
| 3 | what has happened [prep] [art] [adj] | 22 |
|
| 4 | what has happened [prep] [art] [adj] | 22 |
|
| 5 | what has happened [prep] the [adj] | 20 |
|
| 6 | what has happened [prep] the [adj] | 20 |
|
| 7 | what has happened [prep] [adj] [noun] | 9 |
|
| 8 | what has happened [prep] [adj] [noun sg] | 5 |
|
