| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [v-ing] at the [det] time | 140 |
|
| 2 | [was/were] [v-ing] at the time | 66 |
|
| 3 | [was/were] at the [det] time | 36 |
|
| 4 | [was/were] [v-ing] at [det] time | 23 |
|
| 5 | [was/were] [v-ing] at the [det] | 21 |
|
