| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] effect can be [vb pp] by | 12 |
|
| 2 | [adj] effect can be [vb pp] by | 8 |
|
| 3 | effect can be [vb pp] by [v-ing] | 10 |
|
| 4 | effect can be [vb pp] by [verb] | 10 |
|
