| No | Pattern | Freq | Relations |
|---|---|---|---|
| 31 | [was/were] [v-ing] [adv prt] at [art] time | 14 |
|
| 32 | [was/were] [v-ing] [adv prt] at [art] time | 14 |
|
| 33 | [was/were] [v-ing] [adv prt] at [art] [noun pl] | 9 |
|
