| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] at the [noun sg] of | 3026 |
|
| 2 | [adv] investigate the [noun sg] of | 54 |
|
| 3 | [adv] investigate at the [noun sg] | 7 |
|
| 4 | investigate at the [noun sg] of | 5 |
|
