| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | an opportunity for [noun] [verb] | 35 |
|
| 2 | an opportunity [prep] [noun] [to-vb] | 33 |
|
| 3 | an opportunity [prep] [noun pl] [verb] | 26 |
|
| 4 | an opportunity [prep] [noun prp] [verb] | 5 |
|
