| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it happened [prep] | 221 |
|
| 2 | it [verb] during | 61 |
|
| 3 | it [vb past] during | 45 |
|
| 4 | [pron] happened during | 30 |
|
| 5 | it happen during | 8 |
|
| 6 | [pers pn] happened during | 7 |
|
| 7 | it happened during | 7 |
|
