| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [was/were] | 36467 |
|
| 2 | it [was/were] [v-ing] | 3333 |
|
| 3 | [conj] [was/were] [v-ing] | 3008 |
|
| 4 | [conj] it [v-ing] | 19 |
|
