| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] at [art] time of | 59 |
|
| 2 | [was/were] [verb] at the time of | 50 |
|
| 3 | [was/were] [vb pp] at [art] time of | 47 |
|
| 4 | was [verb] at [art] time of | 33 |
|
| 5 | were [verb] at [art] time of | 27 |
|
| 6 | [was/were] [v-ing] at [art] time of | 12 |
|
| 7 | [was/were] [verb] at a time of | 10 |
|
