No | Pattern | Freq | Relations |
---|---|---|---|
1 | must have been [pron] [prep] [det] | 5 | |
2 | must have be [pron] [prep] [det] | 5 | |
3 | must have [be] [pron] [prep] [det] | 5 | |
4 | must have [be] something [prep] [det] | 5 | |
5 | must have [be] something [prep] [det] | 5 | |
6 | must have [been] [pron] [prep] [det] | 5 | |
7 | must have [be] [indef pn] [prep] [det] | 5 |