| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [is] difficult [verb] [coord] | 5 |
|
| 2 | it [is] [adv] difficult [verb] [coord] | 7 |
|
| 3 | it [is] [adv] difficult [verb] [coord] | 7 |
|
| 4 | it [is] difficult [verb] [noun] [coord] | 8 |
|
| 5 | it [is] difficult [verb] [adj] [coord] | 5 |
|
| 6 | it [is] difficult [verb] [adj] [coord] | 5 |
|
