| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] [prep] a | 18683 |
|
| 2 | [be] [verb] [prep] a | 18683 |
|
| 3 | [be] [verb] at [art] | 2713 |
|
| 4 | [be] [verb] at a | 2447 |
|
| 5 | [be] [verb] at a | 671 |
|
