| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adv] investigated at the time | 6 |
|
| 2 | be [adv] investigated [prep] the time | 6 |
|
| 3 | be [adv] investigated at the time | 6 |
|
| 4 | be properly investigated [prep] the time | 5 |
|
| 5 | was [adv] investigated [prep] the time | 5 |
|
