No | Pattern | Freq | Relations |
---|---|---|---|
1 | it must [verb] been [num] of | 8 | |
2 | it must have been [num] [prep] | 8 | |
3 | it must [vb infin] been [num] [prep] | 8 | |
4 | it must [verb] been one [prep] | 8 | |
5 | it must have been [num] [prep] | 8 | |
6 | it must [verb] been [num] [prep] | 8 |