| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] were [verb] at a [noun] | 97 |
|
| 2 | [noun] were [verb] at a [noun sg] | 87 |
|
| 3 | [noun] be [verb] at a time | 47 |
|
| 4 | [noun] [be] [verb] at a time | 47 |
|
| 5 | [noun] were [verb] at [art] time | 47 |
|
| 6 | [noun] [was/were] [verb] at a time | 33 |
|
| 7 | [noun] were [verb] [prep] a time | 16 |
|
| 8 | [noun] were [verb] at a time | 13 |
|
