| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be shown to be effective | 18 |
|
| 2 | [be] shown to be effective | 18 |
|
| 3 | been shown to be effective | 14 |
|
| 4 | [been] shown to be effective | 14 |
|
| 5 | shown to be [adv] effective | 7 |
|
| 6 | shown to be [adv] effective | 7 |
|
| 7 | shown to be effective [prep] | 14 |
|
| 8 | shown to be effective [prep] | 14 |
|
| 9 | shown to be effective in | 8 |
|
| 10 | shown to be effective in | 8 |
|
