| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [verb] [prep] [art] [num] per | 10 |
|
| 2 | was [verb] [prep] [art] [adj] per | 10 |
|
| 3 | was [vb pp] [prep] [art] [adj] per | 9 |
|
| 4 | was [verb] [prep] a [adj] per | 8 |
|
