| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [to-vb] a | 1530 |
|
| 2 | [to-vb] at a | 619 |
|
| 3 | [noun prp] at a | 483 |
|
| 4 | [noun prp] [to-vb] at | 197 |
|
