| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] [prep] the eighteenth century | 20 |
|
| 2 | [was/were] [vb pp] [prep] the eighteenth century | 20 |
|
| 3 | [was/were] [verb] in the eighteenth century | 17 |
|
| 4 | was [verb] [prep] the eighteenth century | 12 |
|
| 5 | were [verb] [prep] the eighteenth century | 8 |
|
