No | Pattern | Freq | Relations |
---|---|---|---|
1 | [is] [to-vb] [prep] [det] [noun] | 84 | |
2 | difficult [to-vb] [prep] [det] [noun] | 83 | |
3 | [is] difficult [to-vb] [det] [noun] | 72 | |
4 | [is] difficult [to-vb] [prep] [noun] | 58 | |
5 | [is] difficult [to-vb] [prep] [det] | 49 | |
6 | [is] difficult [prep] [det] [noun] | 18 |