| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] at [art] time | 123 |
|
| 2 | [was/were] at the time | 102 |
|
| 3 | was at [art] time | 97 |
|
| 4 | were at [art] time | 26 |
|
| 5 | [was/were] at a time | 21 |
|
