| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] dating back [prep] [art] [adj] | 22 |
|
| 2 | [noun pl] dating back [prep] the [adj] | 22 |
|
| 3 | [noun pl] dating back [prep] the [adj] | 22 |
|
| 4 | [noun pl] dating back to [art] [adj] | 22 |
|
| 5 | [noun pl] dating back [prep] [art] [num ord] | 10 |
|
| 6 | [noun pl] dating back [prep] [art] [adj] | 9 |
|
