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