| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] [adv prt] at [art] | 105 |
|
| 2 | [was/were] [v-ing] [noun] at [art] | 80 |
|
| 3 | [v-ing] [adv prt] [noun] at [art] | 31 |
|
| 4 | [was/were] [v-ing] [adv prt] [noun] at | 10 |
|
