| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [adv] [vb pp] at [art] | 379 |
|
| 2 | [was/were] [vb pp] at [art] time | 183 |
|
| 3 | [adv] [vb pp] at [art] time | 153 |
|
| 4 | [was/were] [adv] at [art] time | 53 |
|
