| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [be] [verb] at a time | 10 |
|
| 2 | [pers pn] [be] [vb pp] at a time | 9 |
|
| 3 | [pers pn] [be] at a time [Wh adv] | 7 |
|
| 4 | [pers pn] [be] at a time [adv] | 7 |
|
| 5 | [pers pn] [be] at a time when | 7 |
|
| 6 | [pers pn] [be] at a time when | 7 |
|
