| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] of students | 892 |
|
| 2 | union of [noun] | 590 |
|
| 3 | union of [noun pl] | 290 |
|
| 4 | union of student | 29 |
|
| 5 | union [prep] students | 28 |
|
