| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [v-ing] back [prep] a | 11 |
|
| 2 | be going back [prep] a | 7 |
|
| 3 | be [v-ing] back to a | 7 |
|
| 4 | 're [v-ing] back [prep] a | 6 |
|
| 5 | were [v-ing] back [prep] a | 6 |
|
| 6 | be [v-ing] back from a | 6 |
|
| 7 | be [v-ing] back in a | 5 |
|
