| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] go on for years | 12 |
|
| 2 | have been go on for year | 12 |
|
| 3 | have [been] going on for year | 11 |
|
| 4 | has [been] go on for year | 7 |
|
