| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] it [verb] | 3814 |
|
| 2 | [prep] it [vb -s] | 913 |
|
| 3 | [prep] [pron] happens | 286 |
|
| 4 | [prep] it happen | 61 |
|
| 5 | [prep] it happens | 8 |
|
