| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | carry out [art] research | 17 |
|
| 2 | carry [adv prt] the research | 13 |
|
| 3 | carrying [adv prt] [art] research | 8 |
|
| 4 | carried [adv prt] [art] research | 5 |
|
| 5 | carry [adv prt] a research | 5 |
|
