| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [noun] [conj] [vb pp] [prep] [art] | 42 |
|
| 2 | [prep] [n mass] [conj] [vb pp] [prep] [art] | 22 |
|
| 3 | at [n mass] [conj] [verb] [prep] [art] | 9 |
|
| 4 | at [n mass] [conj] [vb pp] [prep] [art] | 5 |
|
