| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] [prep] the [adj] century | 339 |
|
| 2 | [be] [verb] [prep] the [num ord] century | 329 |
|
| 3 | [be] [verb] [prep] the 18th [noun] | 18 |
|
| 4 | [be] [verb] [prep] [art] 18th century | 13 |
|
| 5 | [be] [verb] [prep] the 18th century | 11 |
|
| 6 | [be] [verb] [prep] the 18th century | 11 |
|
