| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] back [prep] the middle ages | 11 |
|
| 2 | [verb] back [prep] the [adj] ages | 11 |
|
| 3 | [verb] back [prep] the [adj] ages | 11 |
|
| 4 | [verb] back [prep] the middle ages | 11 |
|
| 5 | [verb] back to the [adj] ages | 10 |
|
| 6 | [verb] back to the [adj] ages | 10 |
|
| 7 | date back [prep] the [adj] ages | 6 |
|
| 8 | [vb -s] back [prep] the [adj] ages | 5 |
|
