| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] [pron] [was/were] [v-ing] [prep] | 286 |
|
| 2 | [is] [Wh adv] [pron] [was/were] [v-ing] | 57 |
|
| 3 | [is] [Wh adv] [pron] [was/were] [prep] | 26 |
|
| 4 | [is] [pron] [was/were] [v-ing] [prep] | 11 |
|
