| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [verb] the [num ord] century | 6 |
|
| 2 | [Wh det] [vb past] [art] [num ord] century | 6 |
|
| 3 | which [verb] [art] [num ord] century | 5 |
|
