| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | properly investigate [prep] the time of | 5 |
|
| 2 | properly investigated [prep] the time of | 5 |
|
| 3 | properly [vb pp] [prep] the time of | 5 |
|
| 4 | properly [verb] [prep] the time of | 5 |
|
| 5 | properly [verb] at the time of | 5 |
|
| 6 | properly [verb] at the time of | 5 |
|
