| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be going on for [adj] | 8 |
|
| 2 | had [been] going on for [adj] | 8 |
|
| 3 | had been going on for [adj] | 8 |
|
| 4 | had [be] going on for [det] | 6 |
|
| 5 | had [be] going on for some | 6 |
|
| 6 | had [be] going on for some | 6 |
|
