| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [verb] [noun] | 3261 |
|
| 2 | [modal v] [verb] place | 1340 |
|
| 3 | [vb mod] [verb] place | 1340 |
|
| 4 | should [verb] place | 137 |
|
