| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [verb] [adv prt] [prep] | 15823 |
|
| 2 | [adv] difficult [verb] [prep] | 541 |
|
| 3 | [adv] difficult [verb] [adv prt] | 142 |
|
| 4 | difficult [verb] [adv prt] [prep] | 104 |
|
