| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [det] [noun pl] at | 56 |
|
| 2 | [prep] a few [noun pl] at | 56 |
|
| 3 | for a [det] [noun pl] at | 36 |
|
| 4 | for a [det] [noun pl] at | 36 |
|
| 5 | [prep] a [det] days at | 10 |
|
| 6 | [prep] a [det] hours at | 8 |
|
| 7 | [prep] a [det] minutes at | 7 |
|
| 8 | [prep] a [det] years at | 6 |
|
| 9 | [prep] a [det] months at | 5 |
|
