| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] [vb pp] [prep] a time | 9 |
|
| 2 | be [adv] [verb] [prep] a time | 9 |
|
| 3 | [be] [adv] [verb] [prep] a time | 9 |
|
| 4 | [be] [adv] [verb] at a time | 5 |
|
