No | Pattern | Freq | Relations |
---|---|---|---|
1 | be [adv] difficult [verb] | 1848 | |
2 | [be] [adv] difficult [verb] | 1848 | |
3 | 's [adv] [adj] [verb] | 1637 | |
4 | 's [adv] [adj] [verb] | 1392 | |
5 | [is] [adv] difficult [verb] | 1049 | |
6 | 's [adv] difficult [verb] | 234 | |
7 | 's [adv] difficult [verb] | 219 |