| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adj] not [verb] that | 13 |
|
| 2 | is [adj] not [to-vb] that | 13 |
|
| 3 | is difficult not [verb] that | 7 |
|
| 4 | is difficult not [verb] that | 7 |
|
