| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | were [verb] at a [noun] | 145 |
|
| 2 | [be] [verb] at a time | 107 |
|
| 3 | be [verb] at a time | 107 |
|
| 4 | were [verb] at [art] time | 94 |
|
| 5 | [was/were] [verb] at a time | 48 |
|
| 6 | were [verb] [prep] a time | 22 |
|
