| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it [adv] difficult [verb] | 362 |
|
| 2 | [verb] it [adv] [verb] [coord] | 34 |
|
| 3 | [verb] it difficult [verb] [coord] | 21 |
|
| 4 | it [adv] difficult [verb] [coord] | 10 |
|
| 5 | [verb] it [adv] difficult [coord] | 9 |
|
