| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] it happen | 124 |
|
| 2 | [vb past] it happen | 87 |
|
| 3 | did it happen | 66 |
|
| 4 | saw it happen | 18 |
|
| 5 | had it happen | 14 |
|
| 6 | [vb past] it happened | 13 |
|
| 7 | [vb past] it to happen | 13 |
|
| 8 | made it happen | 6 |
|
| 9 | [vb past] it happening | 5 |
|
| 10 | allowed it happen | 5 |
|
