| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | happening be | 95 |
|
| 2 | happening is | 68 |
|
| 3 | happening [is] | 68 |
|
| 4 | happening [was/were] | 22 |
|
| 5 | happening was | 21 |
|
| 6 | happening are | 5 |
|
| 7 | happening [am/are] | 5 |
|
