| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] [noun pl] [adv] [prep] a [noun prp] | 7 |
|
| 2 | [det] years [adv] [prep] a [noun prp] | 5 |
|
| 3 | [det] [noun pl] ago [prep] a [noun prp] | 5 |
|
| 4 | [det] [noun pl] ago [prep] a [noun prp] | 5 |
|
