No | Pattern | Freq | Relations |
---|---|---|---|
1 | problems [modal v] be [verb] | 225 | |
2 | problems [modal v] be [vb pp] | 223 | |
3 | [noun] [modal v] be traced | 205 | |
4 | [noun pl] [modal v] be traced | 66 | |
5 | problems [modal v] [be] traced | 5 | |
6 | problem [modal v] be traced | 5 | |
7 | problems [modal v] be traced | 5 | |
8 | problems [modal v] be trace | 5 | |
9 | problems [modal v] [be] traced | 5 |