| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] at a [noun] | 1126 |
|
| 2 | [be] [verb] at [art] time | 492 |
|
| 3 | [be] [verb] at [art] time | 492 |
|
| 4 | [be] [verb] [prep] a time | 171 |
|
| 5 | [be] [verb] at a time | 107 |
|
