| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 's [not/n't] [adv] [conj] | 86 |
|
| 2 | [not/n't] [adv] difficult [conj] | 31 |
|
| 3 | 's [not/n't] [adv] difficult | 19 |
|
| 4 | 's [adv] difficult [conj] | 16 |
|
