| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should [verb] [prep] [be] | 158 |
|
| 2 | [modal v] aim [prep] [be] | 10 |
|
| 3 | [vb mod] aim [prep] [be] | 10 |
|
| 4 | should aim [prep] [be] | 6 |
|
