| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [prep] a | 5878 |
|
| 2 | voice [prep] a | 208 |
|
| 3 | voice [was/were] a | 63 |
|
| 4 | voice [was/were] [prep] | 23 |
|
