| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it [modal v] [be] a year | 5 |
|
| 2 | it [modal v] [be] a [adj] year | 10 |
|
| 3 | it [modal v] [be] a [adj] year | 5 |
|
| 4 | it [modal v] [be] a year [conj] | 8 |
|
