| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [vb past] at a [adj] [noun] | 142 |
|
| 2 | [noun] [vb past] [prep] a [adj] time | 32 |
|
| 3 | [noun] [verb] at a [adj] time | 26 |
|
| 4 | [noun] [vb past] at [art] [adj] time | 11 |
|
| 5 | [noun] [vb past] at a [adj] time | 7 |
|
