| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] [verb] at a [noun] | 83 |
|
| 2 | [be] [adv] [verb] at a [noun sg] | 80 |
|
| 3 | [be] [adv] [verb] at [art] time | 74 |
|
| 4 | [be] [adv] [verb] at [art] time | 74 |
|
| 5 | [be] [adv] [verb] [prep] a time | 9 |
|
| 6 | [be] [adv] [verb] [prep] a time | 9 |
|
| 7 | [be] [adv] [verb] at a time | 5 |
|
| 8 | [be] [adv] [verb] at a time | 5 |
|
| 9 | [be] [adv] [verb] at a time | 5 |
|
| 10 | [be] [adv] [verb] at a time | 5 |
|
