| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [adv] a | 8762 |
|
| 2 | [det] [was/were] [adv] | 6298 |
|
| 3 | [det] [was/were] a | 3638 |
|
| 4 | [det] [adv] a | 227 |
|
