No | Pattern | Freq | Relations |
---|---|---|---|
1 | [noun] at [adv] [adv] a year | 14 | |
2 | [noun] at [adv] [adv] a year | 14 | |
3 | [noun] at least [adv] a year | 14 | |
4 | [noun] at [adv] once a year | 12 | |
5 | [noun sg] at [adv] [adv] a year | 8 | |
6 | [noun pl] at [adv] [adv] a year | 5 |