| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [verb] be [vb pp] at | 13 |
|
| 2 | [vb past] [verb] been [verb] at | 11 |
|
| 3 | [vb past] have be [verb] at | 11 |
|
| 4 | [vb past] [to-vb] be [verb] at | 10 |
|
| 5 | [vb past] to have be [verb] at | 9 |
|
