| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] back [prep] the last | 37 |
|
| 2 | [verb] back [prep] the last | 37 |
|
| 3 | [v-ing] back [prep] the last | 13 |
|
| 4 | [vb past] back [prep] the last | 11 |
|
| 5 | [verb] back to the last | 11 |
|
| 6 | [verb] back over the last | 11 |
|
| 7 | look back [prep] the last | 10 |
|
| 8 | date back [prep] the last | 6 |
|
| 9 | [verb] back on the last | 5 |
|
| 10 | [vb base] back [prep] the last | 5 |
|
