| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] so as to enable | 6 |
|
| 2 | [be] [vb pp] so [subord] to enable | 6 |
|
| 3 | [be] [vb pp] so as to enable | 6 |
|
| 4 | be [vb pp] so [conj] to enable | 6 |
|
