| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] [verb] [conj] | 1370 |
|
| 2 | [adv] difficult [verb] [conj] | 382 |
|
| 3 | it [adv] difficult [verb] | 370 |
|
| 4 | it difficult [verb] [conj] | 79 |
|
| 5 | it [adv] difficult [conj] | 40 |
|
