| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] [adv] it is difficult | 10 |
|
| 2 | [coord] [adv] it is difficult | 10 |
|
| 3 | [coord] [adv] [pers pn] is difficult | 10 |
|
| 4 | and [adv] [pron] is difficult | 6 |
|
