| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] back to [art] | 713 |
|
| 2 | [v-ing] [adv] to a | 615 |
|
| 3 | [verb] back to a | 229 |
|
| 4 | [v-ing] back [prep] a | 182 |
|
| 5 | [v-ing] back [prep] a | 182 |
|
| 6 | [v-ing] back to a | 57 |
|
