| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] to | 11238 |
|
| 2 | it [vb past] to | 3900 |
|
| 3 | [pron] happened to | 1195 |
|
| 4 | it happened [prep] | 221 |
|
| 5 | it happen to | 219 |
|
