| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [vb pp] at the | 640 |
|
| 2 | [is] often [vb pp] the | 30 |
|
| 3 | [is] often [vb pp] at | 22 |
|
| 4 | often [vb pp] at the | 20 |
|
