| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] research which show | 5 |
|
| 2 | research which show [that] | 7 |
|
| 3 | research which show that | 7 |
|
| 4 | research which show that | 7 |
|
| 5 | research which show [conj] | 7 |
|
