| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should have a clear idea [prep] | 6 |
|
| 2 | should [vb infin] a clear idea [prep] | 6 |
|
| 3 | should [verb] a clear idea [prep] | 6 |
|
| 4 | should have a clear idea [prep] | 6 |
|
| 5 | should [verb] a clear idea of | 6 |
|
