No | Pattern | Freq | Relations |
---|---|---|---|
1 | it is [adv] [verb] [conj] | 1409 | |
2 | it is [adv] difficult [verb] | 558 | |
3 | it is difficult [verb] [conj] | 164 | |
4 | is [adv] difficult [verb] [conj] | 95 | |
5 | it [adv] difficult [verb] [conj] | 19 | |
6 | it is [adv] difficult [conj] | 18 |