| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] [adv] [verb] [conj] | 1979 |
|
| 2 | [adv] difficult [verb] [conj] | 382 |
|
| 3 | [not/n't] [adv] difficult [verb] | 59 |
|
| 4 | [not/n't] difficult [verb] [conj] | 36 |
|
| 5 | [not/n't] [adv] difficult [conj] | 31 |
|
