| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | carry out research [prep] the | 18 |
|
| 2 | carry [adv prt] research [prep] the | 18 |
|
| 3 | carry out research [prep] the | 18 |
|
| 4 | carrying [adv] research [prep] the | 8 |
|
| 5 | carry [adv] research into the | 7 |
|
| 6 | to carry [adv] research [prep] the | 6 |
|
