| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] has happened to [art] | 33 |
|
| 2 | [Wh det] has happened to [art] | 30 |
|
| 3 | what has happened to [art] | 28 |
|
| 4 | what has happened to [art] | 28 |
|
| 5 | [adj] has happened to [art] | 5 |
|
| 6 | this has happened to [art] | 5 |
|
| 7 | this has happened to [art] | 5 |
|
| 8 | [det] has happened to [art] | 5 |
|
| 9 | has happened to [art] [noun] | 24 |
|
| 10 | has happened to [art] [noun sg] | 20 |
|
| 11 | has happened to [art] [adj] | 15 |
|
| 12 | has happened to [art] [adj] | 14 |
|
