| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be not [adv] [adj] [to-vb] | 769 |
|
| 2 | be not [adv] [adj] [to-vb] | 710 |
|
| 3 | be [adv] [adv] difficult [to-vb] | 300 |
|
| 4 | be not [adv] difficult [to-vb] | 52 |
|
| 5 | be [not/n't] [adv] difficult [to-vb] | 52 |
|
| 6 | [be] not [adv] difficult [to-vb] | 48 |
|
| 7 | be not [adv] difficult [to-vb] | 48 |
|
| 8 | be not [adv] difficult [verb] | 48 |
|
