| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] a | 32941 |
|
| 2 | [vb past] [prep] a | 32941 |
|
| 3 | [vb past] at [art] | 9210 |
|
| 4 | [verb] at a | 8330 |
|
| 5 | [vb past] at a | 1127 |
|
