| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] be [verb] at | 769 |
|
| 2 | [vb past] [to-vb] be [verb] | 570 |
|
| 3 | [to-vb] be [verb] at | 104 |
|
| 4 | [vb past] [to-vb] [verb] at | 28 |
|
