| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun sg] to be effective | 13 |
|
| 2 | [prep] [noun sg] to [be] effective | 13 |
|
| 3 | in [noun sg] to [be] effective | 8 |
|
| 4 | in [noun sg] to [be] effective | 8 |
|
| 5 | [prep] order to [be] effective | 8 |
|
