| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] was [verb] at a time | 20 |
|
| 2 | [noun] was [verb] at a time | 20 |
|
| 3 | [noun] was [vb pp] at a time | 18 |
|
| 4 | [noun sg] was [verb] at a time | 13 |
|
