| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] happened [prep] | 440 |
|
| 2 | [noun sg] happened [prep] | 353 |
|
| 3 | accident [verb] [prep] | 161 |
|
| 4 | accident [vb past] [prep] | 99 |
|
| 5 | accident happen [prep] | 80 |
|
| 6 | accident happened [prep] | 75 |
|
