| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [vb past] at the | 1437 |
|
| 2 | [noun prp] at the time | 352 |
|
| 3 | [vb past] at the time | 331 |
|
| 4 | [noun prp] [vb past] the time | 30 |
|
