| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [verb] at a time [Wh adv] | 58 |
|
| 2 | be [verb] at a time [Wh adv] | 58 |
|
| 3 | [was/were] [verb] at a time [Wh adv] | 33 |
|
| 4 | was [verb] at [art] time [Wh adv] | 28 |
|
| 5 | was [verb] at a [noun sg] [Wh adv] | 27 |
|
| 6 | was [verb] at a [noun] [Wh adv] | 27 |
|
| 7 | was [verb] [prep] a time [Wh adv] | 24 |
|
| 8 | was [verb] at a time [adv] | 24 |
|
| 9 | was [verb] [prep] a time [Wh adv] | 24 |
|
| 10 | was [verb] at a time [Wh adv] | 23 |
|
| 11 | was [verb] at a time [Wh adv] | 23 |
|
