| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] date back to the [num ord] | 14 |
|
| 2 | [pron] date [adv prt] to the [num ord] | 14 |
|
| 3 | [Wh det] date [adv prt] to the [num ord] | 11 |
|
| 4 | which date [adv prt] to the [num ord] | 11 |
|
| 5 | which date [adv prt] to the [num ord] | 11 |
|
| 6 | [pron] dates [adv prt] to the [num ord] | 10 |
|
