| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [be] restricted to | 174 |
|
| 2 | should [be] restricted to | 37 |
|
| 3 | [noun sg] should [be] restricted | 32 |
|
| 4 | [noun sg] should [be] to | 13 |
|
