| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [prep] an [noun] 's | 18 |
|
| 2 | be [vb pp] [prep] an [noun sg] 's | 18 |
|
| 3 | be [vb pp] by an [noun] 's | 5 |
|
