| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is not easy [to-vb] | 252 |
|
| 2 | is n't easy [to-vb] | 18 |
|
| 3 | is not easy to see | 17 |
|
| 4 | is not easy to find | 12 |
|
| 5 | is not easy to understand | 7 |
|
| 6 | is not easy to do | 7 |
|
| 7 | is not easy to define | 7 |
|
| 8 | is not easy to achieve | 7 |
|
| 9 | is not easy to get | 6 |
|
| 10 | is not easy to assess | 6 |
|
| 11 | is not easy to make | 6 |
|
| 12 | is not easy to measure | 6 |
|
| 13 | is not easy to separate | 5 |
|
| 14 | is not easy to come | 5 |
|
| 15 | is not easy to distinguish | 5 |
|
| 16 | is not easy to decide | 5 |
|
