| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [adv] be [verb] | 4697 |
|
| 2 | [adv] be used [verb] | 466 |
|
| 3 | should [adv] be used | 267 |
|
| 4 | should be used [verb] | 108 |
|
