No | Pattern | Freq | Relations |
---|---|---|---|
1 | how difficult it be [prep] | 31 | |
2 | how difficult it be [prep] | 31 | |
3 | how difficult it be [prep] | 31 | |
4 | how difficult it be for | 25 | |
5 | how difficult it be for | 25 | |
6 | how difficult it is [prep] | 21 | |
7 | how difficult it was [prep] | 10 |