| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] [prep] a [noun] | 10355 |
|
| 2 | [was/were] [verb] [prep] a [noun sg] | 9624 |
|
| 3 | [be] [verb] [prep] a period | 196 |
|
| 4 | [was/were] [verb] [prep] [art] period | 91 |
|
| 5 | [was/were] [verb] [prep] [art] period | 91 |
|
| 6 | [was/were] [verb] [prep] a period | 55 |
|
| 7 | [was/were] [verb] [prep] a period | 55 |
|
| 8 | [was/were] [verb] [prep] a period | 55 |
|
