No | Pattern | Freq | Relations |
---|---|---|---|
1 | must have been [prep] a [noun] | 16 | |
2 | must have been [prep] a [noun] | 16 | |
3 | must have been [prep] a [noun] | 16 | |
4 | must have been [prep] a [noun sg] | 16 | |
5 | must have been [prep] a [noun] | 16 | |
6 | must have been in a [noun] | 7 | |
7 | must have been in a [noun] | 7 |