| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] at a | 2102 |
|
| 2 | can [be] [verb] at | 902 |
|
| 3 | can [be] [verb] a | 144 |
|
| 4 | can [verb] at a | 58 |
|
| 5 | can [be] at a | 5 |
|
