| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] [conj] | 3552 |
|
| 2 | [was/were] [v-ing] [subord] | 885 |
|
| 3 | [be] [v-ing] whether | 236 |
|
| 4 | [was/were] [verb] whether | 197 |
|
| 5 | [was/were] [v-ing] whether | 86 |
|
