| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been driving | 37 |
|
| 2 | 've been driving | 15 |
|
| 3 | 'd been driving | 11 |
|
| 4 | have been driving | 11 |
|
| 5 | has been driving | 9 |
|
| 6 | have been driving | 8 |
|
| 7 | 's been driving | 6 |
|
