| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | study carried out [prep] [noun] [noun] | 9 |
|
| 2 | study carried [adv prt] [prep] [noun] [noun] | 9 |
|
| 3 | study carried [adv prt] [prep] [noun prp] [noun] | 6 |
|
| 4 | study carried [adv prt] [prep] [noun] [noun] | 5 |
|
