No | Pattern | Freq | Relations |
---|---|---|---|
1 | know how difficult [pers pn] [be] [prep] | 6 | |
2 | know how difficult [pers pn] [be] [prep] | 6 | |
3 | know how difficult it [be] [prep] | 6 | |
4 | know how difficult [pers pn] [be] [prep] | 6 | |
5 | know how difficult [pers pn] is [prep] | 6 | |
6 | know how difficult [pers pn] be [prep] | 6 | |
7 | know how difficult [pers pn] [is] [prep] | 6 | |
8 | know how difficult [pers pn] [be] for | 5 |