No | Pattern | Freq | Relations |
---|---|---|---|
1 | must [be] [verb] [adj] | 284 | |
2 | must [be] [vb pp] [adj] | 218 | |
3 | [modal v] [be] kept [adj] | 162 | |
4 | [vb mod] [be] kept [adj] | 162 | |
5 | must [be] kept [adj] | 45 | |
6 | must [be] kept [adj] | 45 | |
7 | must [be] keep [adj] | 45 | |
8 | must [be] kept [adj] | 45 |