| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is made [adv] difficult [prep] the | 8 |
|
| 2 | is make [adv] difficult by the | 8 |
|
| 3 | is make [adv] difficult [prep] the | 8 |
|
| 4 | is make more difficult [prep] the | 7 |
|
| 5 | is make more difficult [prep] the | 7 |
|
