| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] difficult [to-vb] | 1836 |
|
| 2 | be [adv] difficult [to-vb] | 1836 |
|
| 3 | [is] [adv] difficult [to-vb] | 1039 |
|
| 4 | is [adv] difficult [to-vb] | 825 |
|
| 5 | [adv] [adv] difficult [to-vb] | 457 |
|
| 6 | [adv] [adv] difficult [to-vb] | 398 |
|
| 7 | [pron] [adv] difficult [to-vb] | 395 |
|
| 8 | [pers pn] [adv] difficult [to-vb] | 381 |
|
| 9 | it [adv] difficult [to-vb] | 366 |
|
| 10 | it [adv] difficult [to-vb] | 366 |
|
| 11 | be [adv] difficult [to-vb] | 308 |
|
| 12 | [be] [adv] difficult [to-vb] | 308 |
|
| 13 | [am/are] [adv] difficult [to-vb] | 240 |
|
| 14 | are [adv] difficult [to-vb] | 237 |
|
| 15 | 's [adv] difficult [to-vb] | 214 |
|
| 16 | [was/were] [adv] difficult [to-vb] | 212 |
|
| 17 | [verb] [adv] difficult [to-vb] | 208 |
|
| 18 | was [adv] difficult [to-vb] | 175 |
|
| 19 | [conj] [adv] difficult [to-vb] | 126 |
|
| 20 | [coord] [adv] difficult [to-vb] | 116 |
|
| 21 | much [adv] difficult [to-vb] | 113 |
|
| 22 | much [adv] difficult [to-vb] | 113 |
|
| 23 | become [adv] difficult [to-vb] | 112 |
|
| 24 | [noun] [adv] difficult [to-vb] | 106 |
|
| 25 | [art] [adv] difficult [to-vb] | 98 |
|
| 26 | [art] [adv] difficult [to-vb] | 98 |
|
| 27 | and [adv] difficult [to-vb] | 87 |
|
| 28 | and [adv] difficult [to-vb] | 87 |
|
| 29 | [vb past] [adv] difficult [to-vb] | 65 |
|
| 30 | the [adv] difficult [to-vb] | 63 |
|
