| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | we 've been [verb] at | 27 |
|
| 2 | we 've been [v-ing] at | 26 |
|
| 3 | we 've been looking at | 17 |
|
| 4 | we 've been look at | 17 |
|
