| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] it [be] | 1134 |
|
| 2 | [det] [was/were] it | 547 |
|
| 3 | [was/were] it [be] | 227 |
|
| 4 | [det] [was/were] [be] | 105 |
|
