| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] at [art] | 1028 |
|
| 2 | [v-ing] at [art] [noun pl] | 775 |
|
| 3 | [was/were] [v-ing] [art] [noun pl] | 697 |
|
| 4 | [was/were] at [art] [noun pl] | 56 |
|
| 5 | [was/were] [v-ing] at [noun pl] | 39 |
|
