| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] still [v-ing] [prep] | 636 |
|
| 2 | [was/were] [v-ing] [prep] an | 365 |
|
| 3 | still [v-ing] [prep] an | 25 |
|
| 4 | [was/were] still [v-ing] an | 11 |
|
| 5 | [was/were] still [prep] an | 11 |
|
