No | Pattern | Freq | Relations |
---|---|---|---|
1 | [adv] difficult [to-vb] [coord] | 136 | |
2 | [adv] difficult [verb] [coord] | 136 | |
3 | [adv] [adj] to understand [coord] | 20 | |
4 | [adv] difficult to understand [conj] | 12 | |
5 | [adv] difficult understand [coord] | 8 | |
6 | [adv] difficult to understand [coord] | 8 |