| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back [prep] the last | 48 |
|
| 2 | back to the last | 12 |
|
| 3 | back to the last | 12 |
|
| 4 | back over the last | 11 |
|
| 5 | back over the last | 11 |
|
| 6 | back in the last | 7 |
|
| 7 | back in the last | 7 |
|
| 8 | back at the last | 5 |
|
| 9 | back on the last | 5 |
|
| 10 | back at the last | 5 |
|
| 11 | back on the last | 5 |
|
