| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | back in the [adj] | 387 |
|
| 2 | back in the [num] | 93 |
|
| 3 | [adv] in the 1930s | 42 |
|
| 4 | back [prep] the 1930s | 13 |
|
| 5 | [adv prt] in the 1930s | 11 |
|
| 6 | back in the 1930s | 7 |
|
| 7 | back in [art] 1930s | 7 |
|
| 8 | back in [art] 1930s | 7 |
|
| 9 | back in the 1930s | 7 |
|
| 10 | back in the 1930s | 7 |
|
