| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [adv] a year | 130 |
|
| 2 | [conj] [adv] a year | 130 |
|
| 3 | [coord] [adv] a year | 97 |
|
| 4 | or [adv] a year | 51 |
|
| 5 | or [adv] a year | 51 |
|
| 6 | [conj] twice a year | 42 |
|
| 7 | and [adv] a year | 29 |
|
| 8 | and [adv] a year | 29 |
|
| 9 | [subord] [adv] a year | 29 |
|
| 10 | [conj] once a year | 21 |
|
| 11 | but [adv] a year | 17 |
|
| 12 | but [adv] a year | 17 |
|
| 13 | [conj] about a year | 13 |
|
| 14 | than [adv] a year | 12 |
|
| 15 | than [adv] a year | 12 |
|
| 16 | after [adv] a year | 11 |
|
| 17 | after [adv] a year | 11 |
|
| 18 | [conj] more a year | 9 |
|
| 19 | [conj] even a year | 7 |
|
| 20 | [conj] so a year | 5 |
|
| 21 | [conj] over a year | 5 |
|
