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