| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for [noun pl] at the end | 7 |
|
| 2 | for students at the [noun sg] | 6 |
|
| 3 | for [noun pl] at the time | 6 |
|
| 4 | for [noun pl] at the top | 5 |
|
