| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] open up the possibility of | 8 |
|
| 2 | [noun] open up the possibility of | 8 |
|
| 3 | [noun sg] open up the possibility of | 5 |
|
| 4 | [noun] opens up the possibility of | 5 |
|
