| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] [vb mod] be [indef pn] | 682 |
|
| 2 | [ex0] be [indef pn] to prevent | 35 |
|
| 3 | [vb mod] be [indef pn] to prevent | 6 |
|
