| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] it [adv] difficult [to-vb] [coord] | 10 |
|
| 2 | [verb] [pers pn] [adv] difficult [to-vb] and | 8 |
|
| 3 | find [pers pn] [adv] difficult [to-vb] [coord] | 7 |
|
