| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 've been [v-ing] a | 108 |
|
| 2 | 've been doing a | 14 |
|
| 3 | 've been having a | 11 |
|
| 4 | 've been [v-ing] an | 10 |
|
| 5 | 've been using a | 7 |
|
| 6 | 've been making a | 7 |
|
| 7 | 've been keeping a | 5 |
|
| 8 | 've been waiting a | 5 |
|
| 9 | 've been driving a | 5 |
|
