| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been look at some of | 7 |
|
| 2 | have been looking at some of | 7 |
|
| 3 | have been [v-ing] at some of | 7 |
|
| 4 | have been [verb] at some of | 7 |
|
| 5 | have been [verb] at some of | 7 |
|
