| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [was/were] at [art] time | 29 |
|
| 2 | it [was/were] at [art] time | 29 |
|
| 3 | it was at [art] time | 29 |
|
| 4 | it [was/were] at the time | 22 |
|
| 5 | it [was/were] at the time | 22 |
|
| 6 | it [was/were] at a time | 7 |
|
| 7 | it [was/were] at a time | 7 |
|
