| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [prep] a [noun] [noun] [pron] | 45 |
|
| 2 | be [prep] [art] [noun] [noun] [Wh pn] | 20 |
|
| 3 | [be] [prep] a [noun] [noun] [Wh pn] | 8 |
|
