| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [not/n't] [verb] | 11501 |
|
| 2 | [is] hard [verb] | 1320 |
|
| 3 | hard [not/n't] [verb] | 39 |
|
| 4 | [is] hard [not/n't] | 26 |
|
