| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] alert we [prep] the | 8 |
|
| 2 | [vb mod] alert us [prep] the | 8 |
|
| 3 | [vb mod] alert we to the | 8 |
|
| 4 | should alert we [prep] the | 7 |
|
