No | Pattern | Freq | Relations |
---|---|---|---|
1 | it is [adj] [to-vb] [noun] | 1221 | |
2 | it be difficult [to-vb] [noun] | 169 | |
3 | it [be] difficult [to-vb] [noun] | 169 | |
4 | it [is] difficult [to-vb] [noun] | 142 | |
5 | it is difficult [verb] [noun] | 118 | |
6 | [pron] is difficult [to-vb] [noun] | 118 | |
7 | [pers pn] is difficult [to-vb] [noun] | 118 | |
8 | it is difficult [to-vb] [noun] | 118 |