| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] not be easy | 185 |
|
| 2 | [vb mod] be easy [to-vb] | 147 |
|
| 3 | not be easy [to-vb] | 42 |
|
| 4 | [vb mod] not be [to-vb] | 20 |
|
