| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adj] [noun] [modal v] | 256 |
|
| 2 | [is] [adj] [noun] [vb mod] | 256 |
|
| 3 | [be] [adj] [noun] must | 33 |
|
| 4 | [is] [adj] [noun] must | 21 |
|
