| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [was/were] [adv] | 36657 |
|
| 2 | but it [was/were] | 6209 |
|
| 3 | but it [adv] | 1524 |
|
| 4 | but [was/were] [adv] | 1325 |
|
