| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | carrying out [noun] [prep] | 75 |
|
| 2 | [verb] out research [prep] | 56 |
|
| 3 | carry out research [prep] | 56 |
|
| 4 | [v-ing] out research [prep] | 20 |
|
| 5 | carrying out research [prep] | 20 |
|
| 6 | carrying [adv] research [prep] | 20 |
|
