| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] at a [noun] | 260 |
|
| 2 | [was/were] at [art] time | 123 |
|
| 3 | [was/were] at [art] time | 123 |
|
| 4 | [was/were] [prep] a time | 40 |
|
| 5 | [was/were] [prep] a time | 40 |
|
| 6 | [be] at a time | 29 |
|
| 7 | [was/were] at a time | 21 |
|
| 8 | [was/were] at a time | 21 |
|
