| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] not [adj] [verb] | 1595 |
|
| 2 | it [is] not [adj] [verb] | 1571 |
|
| 3 | it [is] [adv] difficult [verb] | 919 |
|
| 4 | it [be] not difficult [verb] | 185 |
|
| 5 | it [is] [not/n't] difficult [verb] | 162 |
|
| 6 | it [is] not difficult [verb] | 162 |
|
| 7 | it [is] not difficult [verb] | 155 |
|
| 8 | [pron] [is] not difficult [verb] | 155 |
|
