| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [conj] it is | 2593 |
|
| 2 | [adv] difficult it is | 104 |
|
| 3 | [adv] difficult [conj] it | 65 |
|
| 4 | difficult [conj] it is | 24 |
|
