| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] [adj] [coord] | 516 |
|
| 2 | it is [adv] difficult [conj] | 18 |
|
| 3 | it [be] [adv] difficult [coord] | 17 |
|
| 4 | it be [adv] difficult [coord] | 17 |
|
| 5 | it [is] [adv] difficult [coord] | 14 |
|
| 6 | [pron] is [adv] difficult [coord] | 12 |
|
| 7 | it is [adv] difficult [coord] | 11 |
|
| 8 | [pers pn] is [adv] difficult [coord] | 10 |
|
| 9 | it is [adv] difficult [coord] | 10 |
|
