| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] a [noun] [prep] | 3542 |
|
| 2 | [adj] [be] a [noun] [prep] | 2974 |
|
| 3 | [adj] [modal v] [be] a [noun] | 599 |
|
| 4 | [adj] [modal v] [be] [noun] [prep] | 110 |
|
