| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] back the [n mass] | 6 |
|
| 2 | back [prep] the [n mass] | 84 |
|
| 3 | back [prep] the [n mass] | 84 |
|
| 4 | back to the [n mass] | 50 |
|
| 5 | back to the [n mass] | 50 |
|
| 6 | back on the [n mass] | 10 |
|
| 7 | back on the [n mass] | 10 |
|
| 8 | back at the [n mass] | 6 |
|
| 9 | back at the [n mass] | 6 |
|
