| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb -s] been [verb] on for | 18 |
|
| 2 | it [vb -s] been [v-ing] on for | 16 |
|
| 3 | it [vb -s] been go on for | 15 |
|
| 4 | it 's been [verb] on for | 14 |
|
| 5 | it [vb -s] been going on for | 14 |
|
