| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] is carried | 502 |
|
| 2 | research is [verb] | 413 |
|
| 3 | research is [vb pp] | 225 |
|
| 4 | research be carried | 30 |
|
| 5 | research [be] carried | 30 |
|
| 6 | research is carry | 14 |
|
| 7 | research [is] carried | 13 |
|
