| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] [adv] a [num] [noun] | 80 |
|
| 2 | [noun sg] [prep] [adv] a [num] [noun pl] | 69 |
|
| 3 | [noun sg] [prep] [adv] a [adj] years | 34 |
|
| 4 | [noun sg] [prep] [adv] [art] [num] years | 23 |
|
| 5 | [noun] [prep] [adv] a [num] years | 22 |
|
| 6 | [noun sg] [prep] [adv] a [num] year | 19 |
|
| 7 | [noun sg] [prep] [adv] a [num] years | 19 |
|
