| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [prep] the 1980s | 50 |
|
| 2 | [adj] in the 1980s | 35 |
|
| 3 | [adj] in the 1980s | 35 |
|
| 4 | [adj] during the 1980s | 6 |
|
| 5 | [adj] during the 1980s | 6 |
|
