| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] the 18th century | 225 |
|
| 2 | [verb] [prep] the century | 102 |
|
| 3 | [verb] [prep] the 18th | 86 |
|
| 4 | [verb] [prep] 18th century | 6 |
|
