| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] were you [v-ing] at | 11 |
|
| 2 | what were you [v-ing] at | 11 |
|
| 3 | [Wh det] were you [v-ing] at | 11 |
|
| 4 | [Wh det] were you doing at | 6 |
|
