| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have [been] going on for | 17 |
|
| 2 | it have been going [adv] for | 17 |
|
| 3 | it have [been] going [adv prt] for | 17 |
|
| 4 | it have [been] going on for | 17 |
|
| 5 | it 's [been] going [adv] for | 11 |
|
