| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] difficult to make [noun] | 6 |
|
| 2 | it [is] [adv] difficult to make [noun] | 6 |
|
| 3 | it [is] difficult to make [art] [noun] | 8 |
|
| 4 | it [is] difficult to make [art] [noun] | 8 |
|
| 5 | it [is] difficult to make a [noun] | 5 |
|
| 6 | it [is] difficult to make a [noun] | 5 |
|
