| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [vb pp] [prep] a | 15225 |
|
| 2 | [vb pp] [prep] a time | 233 |
|
| 3 | [was/were] [vb pp] [prep] time | 82 |
|
| 4 | [was/were] [prep] a time | 40 |
|
