| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] at the [adj] | 141 |
|
| 2 | [was/were] [verb] at the [det] | 98 |
|
| 3 | [was/were] [v-ing] [prep] the [det] | 89 |
|
| 4 | [was/were] [v-ing] [prep] the [det] | 89 |
|
| 5 | [be] [v-ing] at the [det] | 58 |
|
| 6 | [was/were] [v-ing] at [art] [det] | 22 |
|
| 7 | [was/were] [v-ing] at the [det] | 21 |
|
