| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] [prep] be effective | 15 |
|
| 2 | [noun pl] [prep] be effective | 13 |
|
| 3 | [noun pl] to [be] effective | 13 |
|
| 4 | [noun pl] [prep] [be] effective | 13 |
|
