| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [be] at a time | 7 |
|
| 2 | [pron] be at a time | 7 |
|
| 3 | [pron] [was/were] at a time | 7 |
|
| 4 | [pron] [be] at a time | 7 |
|
| 5 | [pers pn] [be] at a time | 7 |
|
| 6 | [pron] was at a time | 7 |
|
| 7 | it [be] at a time | 7 |
|
| 8 | it [be] at a time | 7 |
|
