| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [vb pp] [prep] [noun] | 41940 |
|
| 2 | [was/were] [vb pp] [prep] [noun] | 41940 |
|
| 3 | [be] [vb pp] at [noun] | 5635 |
|
| 4 | [was/were] [verb] at [noun] | 2650 |
|
| 5 | [was/were] [vb pp] at [noun] | 2241 |
|
