| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [been] [v-ing] on for | 58 |
|
| 2 | [vb -s] been [v-ing] on for | 58 |
|
| 3 | [vb -s] [been] [v-ing] on for | 58 |
|
| 4 | [vb -s] [been] going on for | 52 |
|
| 5 | has [been] [v-ing] on for | 41 |
|
| 6 | 's [been] [v-ing] on for | 17 |
|
