| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] provides a | 1278 |
|
| 2 | study [verb] a | 249 |
|
| 3 | study [vb -s] a | 68 |
|
| 4 | study provide a | 19 |
|
| 5 | study provides [art] | 9 |
|
