| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [noun pl] at [art] time | 108 |
|
| 2 | [noun sg] [noun pl] at [art] time | 91 |
|
| 3 | [noun] [noun pl] at the time | 78 |
|
| 4 | [noun] [noun pl] at a time | 30 |
|
| 5 | [noun prp] [noun pl] at [art] time | 9 |
|
| 6 | [noun pl] [noun pl] at [art] time | 7 |
|
| 7 | [noun] rates at [art] time | 5 |
|
