| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the [num] when the | 36 |
|
| 2 | the 1980s when the | 6 |
|
| 3 | the 1950s when the | 6 |
|
| 4 | the 1950s when the | 6 |
|
| 5 | the 1980s when the | 6 |
|
| 6 | the 1960s when the | 5 |
|
| 7 | the 1960s when the | 5 |
|
