| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] [prep] [art] [adj] period | 69 |
|
| 2 | [was/were] [verb] [prep] [art] [adj] period | 66 |
|
| 3 | [was/were] [verb] [prep] [art] [adj] period | 65 |
|
| 4 | [was/were] [vb pp] [prep] [art] [adj] period | 62 |
|
| 5 | was [verb] [prep] [art] [adj] period | 45 |
|
| 6 | [was/were] [verb] [prep] a [adj] period | 38 |
|
| 7 | [was/were] [verb] [prep] a [adj] period | 34 |
|
| 8 | [was/were] [verb] [prep] the [adj] period | 31 |
|
| 9 | [was/were] [verb] [prep] the [adj] period | 31 |
|
| 10 | were [verb] [prep] [art] [adj] period | 24 |
|
| 11 | [was/were] [verb] in [art] [adj] period | 17 |
|
| 12 | [was/were] [verb] for [art] [adj] period | 12 |
|
| 13 | [was/were] [verb] during [art] [adj] period | 11 |
|
| 14 | [was/were] [verb] over [art] [adj] period | 10 |
|
| 15 | [was/were] [verb] [prep] [art] long period | 6 |
|
| 16 | [was/were] [verb] [prep] [art] long period | 6 |
|
| 17 | [was/were] [v-ing] [prep] [art] [adj] period | 5 |
|
| 18 | [was/were] [verb] by [art] [adj] period | 5 |
|
