| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was happening [prep] | 344 |
|
| 2 | [was/were] happening to | 155 |
|
| 3 | [was/were] happening in | 117 |
|
| 4 | [was/were] happening at | 35 |
|
| 5 | were happening [prep] | 24 |
|
| 6 | [was/were] happening on | 19 |
|
| 7 | [was/were] happening around | 7 |
|
| 8 | [was/were] happening with | 6 |
|
| 9 | [was/were] happening between | 6 |
|
