| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv prt] at the time | 131 |
|
| 2 | [was/were] [adv prt] at the | 120 |
|
| 3 | [was/were] at the time | 102 |
|
| 4 | [was/were] [adv prt] the time | 6 |
|
