| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [art] time [was/were] | 155 |
|
| 2 | at [art] time it | 139 |
|
| 3 | [art] time it [was/were] | 137 |
|
| 4 | at time it [was/were] | 7 |
|
