| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] as a warning | 11 |
|
| 2 | [vb mod] [verb] as a warning | 11 |
|
| 3 | [modal v] [vb infin] as a warning | 11 |
|
| 4 | [modal v] serve as a warning | 10 |
|
| 5 | [modal v] serve as a warning | 10 |
|
| 6 | should [verb] as a warning | 8 |
|
| 7 | should [verb] as a warning | 8 |
|
