| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be used [prep] [det] [noun sg] | 13 |
|
| 2 | should be used [prep] [det] [noun pl] | 12 |
|
| 3 | should be used in [det] [noun] | 11 |
|
| 4 | should be used [prep] all [noun] | 11 |
|
| 5 | should be used for [det] [noun] | 9 |
|
| 6 | should be used [prep] this [noun] | 8 |
|
