| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] at a | 671 |
|
| 2 | be [vb pp] at a | 608 |
|
| 3 | be done [prep] a | 222 |
|
| 4 | be done [prep] a | 222 |
|
| 5 | be done at [art] | 37 |
|
| 6 | be done at a | 16 |
|
| 7 | [be] done at a | 16 |
|
| 8 | be done at a | 8 |
|
| 9 | [be] done at a | 8 |
|
| 10 | be do at a | 8 |
|
