| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] at this [noun sg] | 192 |
|
| 2 | [v-ing] at this [noun sg] | 189 |
|
| 3 | [was/were] [v-ing] this [noun sg] | 182 |
|
| 4 | [was/were] [v-ing] at [noun sg] | 99 |
|
| 5 | [was/were] [v-ing] at this | 22 |
|
