| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] [be] [vb pp] at | 611 |
|
| 2 | [verb] [be] [vb pp] at some | 24 |
|
| 3 | [prep] [be] [vb pp] at some | 18 |
|
| 4 | [verb] [prep] [be] [vb pp] some | 12 |
|
