| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] difficult [to-vb] [adv] | 215 |
|
| 2 | [be] [adv] difficult [to-vb] [adv] | 215 |
|
| 3 | [is] [adv] difficult [to-vb] [adv] | 123 |
|
| 4 | is [adv] difficult [to-vb] [adv] | 84 |
|
| 5 | [adv] [adv] difficult [to-vb] [adv] | 42 |
|
| 6 | 's [adv] difficult [to-vb] [adv] | 39 |
|
| 7 | [be] [adv] difficult [to-vb] [adv] | 37 |
|
| 8 | be [adv] difficult [to-vb] [adv] | 37 |
|
| 9 | [adv] [adv] difficult [to-vb] [adv] | 36 |
|
| 10 | [pron] [adv] difficult [to-vb] [adv] | 34 |
|
| 11 | it [adv] difficult [to-vb] [adv] | 33 |
|
| 12 | it [adv] difficult [to-vb] [adv] | 33 |
|
| 13 | [pers pn] [adv] difficult [to-vb] [adv] | 33 |
|
| 14 | [am/are] [adv] difficult [to-vb] [adv] | 27 |
|
| 15 | are [adv] difficult [to-vb] [adv] | 27 |
|
| 16 | [was/were] [adv] difficult [to-vb] [adv] | 26 |
|
| 17 | was [adv] difficult [to-vb] [adv] | 22 |
|
| 18 | [verb] [adv] difficult [to-vb] [adv] | 17 |
|
| 19 | [conj] [adv] difficult [to-vb] [adv] | 10 |
|
| 20 | [noun] [adv] difficult [to-vb] [adv] | 9 |
|
| 21 | become [adv] difficult [to-vb] [adv] | 9 |
|
| 22 | and [adv] difficult [to-vb] [adv] | 8 |
|
| 23 | [coord] [adv] difficult [to-vb] [adv] | 8 |
|
| 24 | and [adv] difficult [to-vb] [adv] | 8 |
|
| 25 | [art] [adv] difficult [to-vb] [adv] | 7 |
|
| 26 | [art] [adv] difficult [to-vb] [adv] | 7 |
|
| 27 | much [adv] difficult [to-vb] [adv] | 6 |
|
| 28 | much [adv] difficult [to-vb] [adv] | 6 |
|
| 29 | not [adv] difficult [to-vb] [adv] | 6 |
|
| 30 | [not/n't] [adv] difficult [to-vb] [adv] | 6 |
|
