No | Pattern | Freq | Relations |
---|---|---|---|
1 | difficult to be [adj] | 88 | |
2 | difficult to [be] [adj] | 88 | |
3 | difficult to [be] [adj] | 88 | |
4 | difficult to [be] sure | 30 | |
5 | difficult to [be] sure | 30 | |
6 | difficult to [be] certain | 15 | |
7 | difficult to [be] certain | 15 | |
8 | difficult to [be] precise | 7 | |
9 | difficult to [be] precise | 7 |