| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] back to the middle | 14 |
|
| 2 | date back to the middle | 7 |
|
| 3 | go back to the middle | 5 |
|
| 4 | [vb -s] back to the middle | 5 |
|
| 5 | back to the middle [noun] | 17 |
|
| 6 | back to the middle [noun pl] | 13 |
|
| 7 | back to the middle ages | 12 |
|
| 8 | back to the middle age | 12 |
|
