| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is difficult [verb] [conj] | 164 |
|
| 2 | it is [adj] [verb] and | 123 |
|
| 3 | it [be] difficult [verb] and | 13 |
|
| 4 | it be difficult [verb] and | 13 |
|
| 5 | it [is] difficult [verb] and | 9 |
|
| 6 | [pron] is difficult [verb] and | 7 |
|
| 7 | [pers pn] is difficult [verb] and | 7 |
|
| 8 | it is difficult [verb] and | 6 |
|
