No | Pattern | Freq | Relations |
---|---|---|---|
1 | is [that] it [is] difficult [verb] | 5 | |
2 | is that it [is] difficult [verb] | 5 | |
3 | is [conj] it [is] difficult [to-vb] | 5 | |
4 | is [conj] it [is] difficult [verb] | 5 | |
5 | is that it [is] difficult [verb] | 5 | |
6 | is [conj] it [is] difficult [verb] | 5 |