| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] [noun] at the time | 16 |
|
| 2 | [vb past] [prep] [noun prp] at the time | 8 |
|
| 3 | [vb past] [prep] [noun sg] at the time | 8 |
|
| 4 | came [prep] [noun] at the time | 5 |
|
