| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh adv] [pron] [be] [v-ing] [prep] | 808 |
|
| 2 | was [Wh adv] [pron] [be] [v-ing] | 60 |
|
| 3 | was [pron] [be] [v-ing] [prep] | 40 |
|
| 4 | was [Wh adv] [pron] [be] [prep] | 16 |
|
