| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] of year [adv] | 39 |
|
| 2 | [prep] a [noun sg] of year [adv] | 39 |
|
| 3 | [prep] a [noun] of years [adv] | 38 |
|
| 4 | [prep] a couple of year [adv] | 24 |
|
| 5 | [prep] a couple of year [adv] | 24 |
|
| 6 | for a [noun] of year [adv] | 23 |
|
| 7 | [prep] a [noun] of year now | 17 |
|
| 8 | [prep] a number of year [adv] | 12 |
|
| 9 | [prep] a number of year [adv] | 12 |
|
| 10 | [prep] a [noun] of year ago | 9 |
|
