| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [det] than a year [adv] | 43 |
|
| 2 | [det] than a year [adv] | 43 |
|
| 3 | [det] than a year [adv] | 42 |
|
| 4 | more than a year [adv] | 24 |
|
| 5 | less than a year [adv] | 19 |
|
| 6 | [det] than a year ago | 19 |
|
| 7 | [det] than a year ago | 19 |
|
| 8 | [det] than a year later | 13 |
|
| 9 | [det] than a year later | 13 |
|
