| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been doing a | 41 |
|
| 2 | 've been doing a | 14 |
|
| 3 | have been doing a | 7 |
|
| 4 | has been doing a | 6 |
|
| 5 | had been doing a | 5 |
|
| 6 | 's been doing a | 5 |
|
