| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have be happening | 167 |
|
| 2 | have [been] happening | 167 |
|
| 3 | have been happening | 167 |
|
| 4 | has [be] happening | 70 |
|
| 5 | 's [be] happening | 53 |
|
| 6 | had [be] happening | 29 |
|
| 7 | have [be] happening | 8 |
|
| 8 | have [be] happening | 5 |
|
