| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] [coord] [v-ing] [prep] | 129 |
|
| 2 | [was/were] [v-ing] [coord] [v-ing] [prep] | 129 |
|
| 3 | [be] [v-ing] [coord] [v-ing] at | 44 |
|
| 4 | [was/were] [v-ing] [coord] [verb] at | 33 |
|
| 5 | [was/were] [v-ing] [coord] [v-ing] at | 28 |
|
| 6 | [was/were] [verb] [coord] [v-ing] at | 28 |
|
| 7 | [was/were] [v-ing] [conj] [v-ing] at | 28 |
|
