| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun sg] at [art] time | 373 |
|
| 2 | [prep] [noun sg] at [art] time | 373 |
|
| 3 | [prep] [noun sg] at a [noun] | 355 |
|
| 4 | [prep] [noun sg] at a [noun sg] | 332 |
|
| 5 | [prep] [noun] at a time | 203 |
|
| 6 | [prep] [noun sg] [prep] a time | 97 |
|
| 7 | [prep] [noun sg] [prep] a time | 97 |
|
| 8 | [prep] [noun sg] at a time | 75 |
|
| 9 | [prep] [noun sg] at a time | 75 |
|
| 10 | [prep] [noun sg] at a time | 75 |
|
