| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] are often [vb pp] [prep] a | 46 |
|
| 2 | [noun] are often [verb] [prep] a | 46 |
|
| 3 | [noun] are often [adj] [prep] a | 8 |
|
| 4 | [noun] are often [adj] [prep] a | 8 |
|
