| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [v-ing] [adv] at the | 109 |
|
| 2 | was [v-ing] at the time | 43 |
|
| 3 | was [adv] at the time | 39 |
|
| 4 | [v-ing] [adv] at the time | 34 |
|
