| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | make it harder for | 56 |
|
| 2 | make it harder [prep] | 11 |
|
| 3 | making it harder [prep] | 11 |
|
| 4 | make it harder [prep] | 10 |
|
| 5 | makes it harder [prep] | 10 |
|
| 6 | to make it harder [prep] | 7 |
|
| 7 | made it harder [prep] | 6 |
|
