| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] it is for | 81 |
|
| 2 | difficult it is for | 22 |
|
| 3 | important it is for | 17 |
|
| 4 | hard it is for | 6 |
|
| 5 | necessary it is for | 6 |
|
| 6 | easy it is for | 5 |
|
