| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] [conj] [adj] | 227 |
|
| 2 | [adv] difficult [conj] [adj] | 208 |
|
| 3 | it [adv] difficult [conj] | 40 |
|
| 4 | it difficult [conj] [adj] | 13 |
|
