| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | dating [adv prt] to the [adj] century | 29 |
|
| 2 | dating [adv prt] to the [num ord] century | 29 |
|
| 3 | dating back to the [adj] century | 29 |
|
| 4 | dating [adv prt] to the [adj] century | 29 |
|
