| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] to | 448417 |
|
| 2 | [vb past] to | 78169 |
|
| 3 | happen to | 5263 |
|
| 4 | happened [prep] | 3000 |
|
| 5 | happened [prep] | 3000 |
|
| 6 | happened to | 1610 |
|
