| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] in a [adj] [noun] | 135 |
|
| 2 | [vb mod] [be] in a [adj] [noun] | 135 |
|
| 3 | must [be] [prep] a [adj] [noun] | 39 |
|
| 4 | must [be] [prep] a [adj] [noun] | 39 |
|
| 5 | must [be] in [art] [adj] [noun] | 26 |
|
| 6 | must [be] in a [adj] [noun] | 10 |
|
| 7 | must [be] in a [adj] [noun] | 10 |
|
| 8 | must [be] in a [adj] [noun] | 10 |
|
