| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | date back [prep] [art] time | 9 |
|
| 2 | date back to [art] time | 9 |
|
| 3 | date back to [art] time | 9 |
|
| 4 | date back [prep] [art] time | 9 |
|
| 5 | date back [prep] [art] time | 9 |
|
| 6 | date back [prep] the time | 6 |
|
| 7 | date back [prep] the time | 6 |
|
