| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [been] [v-ing] on for | 58 |
|
| 2 | it [vb -s] [been] [v-ing] for | 33 |
|
| 3 | it [vb -s] [been] [v-ing] on | 30 |
|
