| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was at one [noun sg] | 64 |
|
| 2 | [was/were] at one time | 63 |
|
| 3 | were at one [noun sg] | 19 |
|
| 4 | [was/were] at one stage | 9 |
|
| 5 | [was/were] at one point | 5 |
|
