| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | in previous [noun] | 498 |
|
| 2 | in [adj] research | 318 |
|
| 3 | [prep] previous research | 22 |
|
| 4 | [prep] previous research | 22 |
|
| 5 | in previous research | 7 |
|
