| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [be] [adv] a | 1918 |
|
| 2 | [be] [adv] a year | 133 |
|
| 3 | [det] [be] a year | 19 |
|
| 4 | [det] [adv] a year | 8 |
|
