| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [be] to be effective [prep] | 5 |
|
| 2 | [be] [vb pp] to be effective [prep] | 21 |
|
| 3 | [be] [verb] to be effective [prep] | 21 |
|
| 4 | [be] shown to be effective [prep] | 10 |
|
| 5 | [be] show to be effective [prep] | 10 |
|
| 6 | [be] [adj] to be effective [prep] | 6 |
|
| 7 | [be] unlikely to be effective [prep] | 6 |
|
| 8 | [be] [adj] to be effective [prep] | 6 |
|
| 9 | [be] unlikely to be effective [prep] | 6 |
|
