| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] not easy [verb] | 312 |
|
| 2 | [is] not so easy | 66 |
|
| 3 | [is] so easy [verb] | 58 |
|
| 4 | not so easy [verb] | 50 |
|
| 5 | [is] not so [verb] | 18 |
|
