| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [noun] [be] [verb] [prep] a | 1287 |
|
| 2 | [conj] [noun] [be] [verb] [prep] a | 1287 |
|
| 3 | [conj] [noun] [be] [verb] at [art] | 196 |
|
| 4 | [conj] [noun] [be] [verb] at a | 54 |
|
