| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this [be] [verb] at a time | 5 |
|
| 2 | this be [verb] at a time | 5 |
|
| 3 | this [verb] at a time [Wh adv] | 11 |
|
| 4 | this [verb] at a time when | 11 |
|
| 5 | this [verb] at a time [adv] | 11 |
|
| 6 | this [verb] at a time when | 11 |
|
