| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] is [adv] difficult [verb] | 586 |
|
| 2 | [pron] is [adv] difficult [to-vb] | 582 |
|
| 3 | [pron] is [adv] [adj] to achieve | 21 |
|
| 4 | [pron] is [adv] [adj] to achieve | 20 |
|
| 5 | [pron] is [adv] difficult to achieve | 10 |
|
| 6 | [pron] [be] [adv] difficult to achieve | 10 |
|
| 7 | [pron] be [adv] difficult to achieve | 10 |
|
| 8 | [pron] is [adv] difficult achieve | 10 |
|
| 9 | [pron] [is] [adv] difficult to achieve | 10 |
|
| 10 | [pron] is [adv] difficult to achieve | 10 |
|
