| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] have be going on for | 9 |
|
| 2 | [noun pl] have been going on for | 9 |
|
| 3 | [noun pl] have [been] going on for | 9 |
|
| 4 | [noun pl] had [be] going on for | 5 |
|
