| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] at a | 2102 |
|
| 2 | [verb] at a time | 345 |
|
| 3 | [be] at a time | 29 |
|
| 4 | [be] [verb] a time | 16 |
|
| 5 | [be] [verb] at time | 8 |
|
