| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] at a time | 203 |
|
| 2 | [prep] [noun] at a time | 203 |
|
| 3 | [prep] [noun] at a time | 203 |
|
| 4 | [prep] [noun pl] at a time | 96 |
|
| 5 | [prep] [noun sg] at a time | 75 |
|
| 6 | of [noun] at a time | 74 |
|
| 7 | of [noun] at a time | 74 |
|
| 8 | for [noun] at a time | 73 |
|
| 9 | for [noun] at a time | 73 |
|
| 10 | [prep] [noun prp] at a time | 28 |
|
| 11 | in [noun] at a time | 22 |
|
| 12 | in [noun] at a time | 22 |
|
| 13 | [prep] month at a time | 16 |
|
| 14 | [prep] months at a time | 16 |
|
| 15 | [prep] hours at a time | 15 |
|
| 16 | [prep] hour at a time | 15 |
|
| 17 | [prep] day at a time | 14 |
|
| 18 | [prep] days at a time | 14 |
|
| 19 | [prep] weeks at a time | 13 |
|
| 20 | [prep] week at a time | 13 |
|
| 21 | to [noun] at a time | 11 |
|
| 22 | to [noun] at a time | 11 |
|
| 23 | on [noun] at a time | 9 |
|
| 24 | on [noun] at a time | 9 |
|
| 25 | [prep] year at a time | 6 |
|
| 26 | [prep] years at a time | 6 |
|
