| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] at the [adj] [noun] | 1388 |
|
| 2 | [verb] at the [adj] time | 876 |
|
| 3 | [vb past] [prep] the [adj] time | 443 |
|
| 4 | [vb past] at [art] [adj] time | 91 |
|
