| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] [noun pl] [adv] an [noun sg] | 13 |
|
| 2 | [adj] years [adv] an [noun sg] | 9 |
|
| 3 | [adj] [noun pl] ago an [noun sg] | 8 |
|
| 4 | [adj] [noun pl] [adv] an [noun sg] | 5 |
|
