| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] on for [noun pl] | 30 |
|
| 2 | been [v-ing] on for [noun] | 30 |
|
| 3 | been go on for [noun] | 26 |
|
| 4 | been going on for [noun] | 25 |
|
| 5 | been [verb] on for years | 15 |
|
| 6 | been [verb] on for year | 15 |
|
