| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] it [is] [adj] not [verb] | 38 |
|
| 2 | [coord] it [is] [adj] not [verb] | 32 |
|
| 3 | [coord] it [is] difficult [adv] [verb] | 12 |
|
| 4 | [coord] it [be] difficult not [verb] | 9 |
|
| 5 | [coord] it [is] difficult not [verb] | 8 |
|
| 6 | [coord] it [is] difficult not [verb] | 8 |
|
| 7 | [coord] it [is] difficult not [verb] | 8 |
|
| 8 | [coord] [pron] [is] difficult not [verb] | 8 |
|
| 9 | [coord] [pers pn] [is] difficult not [verb] | 8 |
|
| 10 | [conj] it [is] difficult not [verb] | 8 |
|
| 11 | [coord] it [is] difficult [not/n't] [verb] | 8 |
|
