| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [not/n't] [adv] [adj] [to-vb] | 181 |
|
| 2 | was [not/n't] [adv] [adj] [to-vb] | 167 |
|
| 3 | [be] [not/n't] [adv] difficult [to-vb] | 52 |
|
| 4 | be [not/n't] [adv] difficult [to-vb] | 52 |
|
| 5 | was [adv] [adv] difficult [to-vb] | 24 |
|
| 6 | was [not/n't] [adv] difficult [verb] | 8 |
|
| 7 | [was/were] [not/n't] [adv] difficult [to-vb] | 8 |
|
| 8 | was [not/n't] [adv] difficult [to-vb] | 8 |
|
