| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what happened [prep] [art] [adj] [noun sg] | 58 |
|
| 2 | what happened [prep] [art] [adj] [noun sg] | 58 |
|
| 3 | what [verb] at [art] [adj] [noun sg] | 10 |
|
| 4 | what happen at [art] [adj] [noun sg] | 10 |
|
| 5 | [pron] happened at [art] [adj] [noun sg] | 8 |
|
| 6 | [Wh det] happened at [art] [adj] [noun sg] | 5 |
|
| 7 | what happened at [art] [adj] [noun] | 5 |
|
| 8 | what happened at [art] [adj] [noun sg] | 5 |
|
| 9 | what happened at [art] [adj] [noun sg] | 5 |
|
| 10 | what [vb past] at [art] [adj] [noun sg] | 5 |
|
