| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun prp] [to-vb] at a | 8 |
|
| 2 | [prep] [noun prp] [to-vb] at a | 8 |
|
| 3 | [noun prp] [to-vb] at a [adj] | 6 |
|
| 4 | [noun prp] [to-vb] at a [adj] | 5 |
|
