| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] [be] a [adj] [noun] | 7157 |
|
| 2 | [modal v] [be] a [adj] [noun] | 7157 |
|
| 3 | could [be] [art] [adj] [noun] | 789 |
|
| 4 | could [be] a [adj] [noun] | 536 |
|
