| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back in the [num ord] [noun sg] | 43 |
|
| 2 | back in the [num ord] century | 11 |
|
| 3 | back in the first [noun sg] | 11 |
|
| 4 | back in the [num ord] division | 9 |
|
| 5 | back in the second [noun sg] | 8 |
|
| 6 | back in the [num ord] minute | 7 |
|
| 7 | back in the [num ord] half | 5 |
|
