| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [was/were] [prep] a [noun sg] | 542 |
|
| 2 | but it [was/were] a [noun sg] | 233 |
|
| 3 | but it [was/were] [prep] a | 28 |
|
| 4 | but it [was/were] [prep] [noun sg] | 16 |
|
