| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] difficult to achieve | 19 |
|
| 2 | is more [adj] to achieve | 9 |
|
| 3 | is [adv] likely to achieve | 7 |
|
| 4 | is very [adj] to achieve | 6 |
|
