No | Pattern | Freq | Relations |
---|---|---|---|
1 | it must [verb] been [noun] | 41 | |
2 | it must [verb] be [noun] | 41 | |
3 | it must [vb infin] be [noun] | 41 | |
4 | it must have be [noun] | 41 | |
5 | it must have be [noun] | 39 | |
6 | it must [verb] be [noun prp] | 27 | |
7 | it must [verb] be [noun sg] | 13 |