| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been going on [prep] | 165 |
|
| 2 | have been going on [prep] | 165 |
|
| 3 | have been [verb] on at | 17 |
|
| 4 | have been [v-ing] on at | 10 |
|
| 5 | have been going [adv] at | 9 |
|
| 6 | have [been] going on at | 9 |
|
| 7 | have been go on at | 9 |
|
| 8 | have [be] going on at | 9 |
|
| 9 | have been going on at | 9 |
|
| 10 | [verb] been going on at | 9 |
|
| 11 | have be going on at | 9 |
|
