| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] at [art] time [verb] | 19 |
|
| 2 | [vb past] at [art] time [verb] | 19 |
|
| 3 | [vb past] at the time [verb] | 17 |
|
| 4 | [vb past] at the time [verb] | 17 |
|
| 5 | [vb past] at [art] time [vb past] | 10 |
|
| 6 | had at [art] time [verb] | 10 |
|
| 7 | [vb past] at [art] time [to-vb] | 6 |
|
