| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is a difficult [noun] | 30 |
|
| 2 | it is a difficult [noun] | 30 |
|
| 3 | it is [art] difficult [noun] | 30 |
|
| 4 | it is [art] difficult [noun] | 30 |
|
| 5 | it is [adv] difficult [noun] | 5 |
|
| 6 | it is difficult [to-vb] [noun] | 118 |
|
| 7 | it is difficult [verb] [noun] | 118 |
|
| 8 | it is difficult [prep] [noun] | 34 |
|
| 9 | it is difficult [prep] [noun] | 34 |
|
| 10 | it is difficult for [noun] | 28 |
|
| 11 | it is difficult for [noun] | 28 |
|
| 12 | it is difficult to find [noun] | 10 |
|
| 13 | it is difficult find [noun] | 10 |
|
| 14 | it is difficult get [noun] | 6 |
|
| 15 | it is difficult to get [noun] | 6 |
|
| 16 | it is difficult to make [noun] | 5 |
|
| 17 | it is difficult make [noun] | 5 |
|
