| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be effective | 325 |
|
| 2 | [prep] be effective | 318 |
|
| 3 | [prep] [be] effective | 318 |
|
| 4 | to [be] effective | 318 |
|
| 5 | [prep] [being] effective | 7 |
|
| 6 | [prep] being effective | 7 |
|
