| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] [adv] [adv] to | 366 |
|
| 2 | [verb] [adv] back to | 232 |
|
| 3 | [v-ing] [adv] back [prep] | 64 |
|
| 4 | [v-ing] [adv] back to | 19 |
|
