No | Pattern | Freq | Relations |
---|---|---|---|
1 | so difficult [to-vb] | 128 |
![]() ![]() ![]() ![]() |
2 | so difficult to get | 10 |
![]() ![]() ![]() ![]() |
3 | so difficult to understand | 6 |
![]() ![]() ![]() ![]() |
4 | so difficult to achieve | 5 |
![]() ![]() ![]() ![]() |