| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | carrying out research | 23 |
|
| 2 | to carry out research | 21 |
|
| 3 | carries out research | 7 |
|
| 4 | carry out research | 6 |
|
| 5 | carried out research | 6 |
|
| 6 | carry out research | 5 |
|
| 7 | carried out research | 5 |
|
