| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] to [be] [adv] effective | 27 |
|
| 2 | be [vb pp] to be [adv] effective | 27 |
|
| 3 | been [vb pp] to [be] [adv] effective | 12 |
|
| 4 | be [vb pp] to [be] more effective | 8 |
|
| 5 | be [vb pp] to [be] more effective | 8 |
|
| 6 | be found to [be] [adv] effective | 7 |
|
| 7 | be shown to [be] [adv] effective | 7 |
|
| 8 | be [vb pp] to [be] as effective | 6 |
|
| 9 | be [vb pp] to [be] as effective | 6 |
|
| 10 | is [vb pp] to [be] [adv] effective | 5 |
|
