| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it is [adv] difficult make | 25 |
|
| 2 | it is [adv] difficult make | 25 |
|
| 3 | [pron] is [adv] difficult to make | 25 |
|
| 4 | [pers pn] is [adv] difficult make | 25 |
|
| 5 | [pron] is very difficult make | 10 |
|
