| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] difficult [adv] [verb] | 17 |
|
| 2 | [conj] it [is] difficult [adv] [to-vb] | 17 |
|
| 3 | [conj] it is difficult [adv] [verb] | 15 |
|
| 4 | [coord] it [is] difficult [adv] [verb] | 12 |
|
| 5 | [conj] it [is] difficult [adv] [verb] | 9 |
|
| 6 | [conj] it [is] difficult [not/n't] [verb] | 8 |
|
| 7 | [conj] it [is] difficult not [verb] | 8 |
|
| 8 | [conj] it [is] difficult not [verb] | 8 |
|
| 9 | and it [is] difficult [adv] [verb] | 8 |
|
| 10 | and it [is] difficult [adv] [verb] | 8 |
|
