| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [subord] it be [verb] [num ord] year | 7 |
|
| 2 | [subord] it [be] [verb] [num ord] year | 7 |
|
| 3 | [subord] it [was/were] [verb] [num ord] year | 6 |
|
| 4 | [subord] it was [verb] [num ord] year | 6 |
|
