| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was at [det] time | 153 |
|
| 2 | was at that time | 79 |
|
| 3 | was at this time | 68 |
|
| 4 | was at [det] times | 14 |
|
| 5 | was at all time | 9 |
|
| 6 | was at some time | 6 |
|
