| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [verb] | 23359 |
|
| 2 | should be [vb pp] | 21721 |
|
| 3 | [vb mod] be restricted | 187 |
|
| 4 | [modal v] be restricted | 187 |
|
| 5 | should be restrict | 55 |
|
| 6 | should [be] restricted | 55 |
|
| 7 | should be restricted | 55 |
|
| 8 | should be restricted | 55 |
|
| 9 | should [be] restricted | 55 |
|
