| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it 's been [v-ing] on for | 13 |
|
| 2 | [pers pn] 's been [v-ing] on for | 13 |
|
| 3 | it 's been [v-ing] on for | 13 |
|
| 4 | [pron] 's been going on for | 12 |
|
