| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [adv] difficult [to-vb] [conj] [art] | 40 |
|
| 2 | be [adv] difficult [to-vb] [conj] [art] | 40 |
|
| 3 | [is] [adv] difficult [to-vb] [conj] [art] | 24 |
|
| 4 | is [adv] difficult [to-vb] [conj] [art] | 24 |
|
| 5 | [adv] [adv] difficult [to-vb] [conj] [art] | 13 |
|
| 6 | be [adv] difficult [to-vb] [conj] [art] | 12 |
|
| 7 | [be] [adv] difficult [to-vb] [conj] [art] | 12 |
|
| 8 | [adv] [adv] difficult [to-vb] [conj] [art] | 11 |
|
| 9 | [verb] [adv] difficult [to-vb] [conj] [art] | 5 |
|
| 10 | become [adv] difficult [to-vb] [conj] [art] | 5 |
|
| 11 | [adv] [adv] difficult [to-vb] [conj] [art] | 11 |
|
| 12 | [adv] [adv] difficult [to-vb] [conj] [art] | 11 |
|
| 13 | [adv] more difficult [to-vb] [conj] [art] | 10 |
|
| 14 | [adv] more difficult [to-vb] [conj] [art] | 10 |
|
| 15 | [adv] difficult [to-vb] [adv] [conj] [art] | 5 |
|
| 16 | [adv] difficult [to-vb] [noun] [conj] [art] | 5 |
|
| 17 | [adv] difficult [to-vb] [conj] [prep] [art] | 13 |
|
| 18 | [adv] difficult [to-vb] [conj] [prep] [art] | 13 |
|
| 19 | [adv] difficult [to-vb] [conj] [verb] [art] | 7 |
|
| 20 | [adv] difficult [to-vb] [conj] of [art] | 6 |
|
| 21 | [adv] difficult [to-vb] [conj] of [art] | 6 |
|
| 22 | [adv] difficult [to-vb] [conj] [art] [noun] | 48 |
|
| 23 | [adv] difficult [to-vb] [conj] [art] [noun sg] | 39 |
|
| 24 | [adv] difficult [to-vb] [conj] [art] [adj] | 15 |
|
| 25 | [adv] difficult [to-vb] [conj] [art] [adj] | 13 |
|
| 26 | [adv] difficult [to-vb] [conj] [art] [noun pl] | 6 |
|
