| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [verb] [conj] it [be] | 318 |
|
| 2 | [was/were] [v-ing] [conj] [pron] [be] | 275 |
|
| 3 | [be] [v-ing] [conj] it [be] | 176 |
|
