| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [is] [adv] difficult for | 114 |
|
| 2 | and it [is] [adv] difficult | 63 |
|
| 3 | and it [is] [adv] for | 13 |
|
| 4 | and it [is] difficult for | 11 |
|
