| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not [det] [det] than a year | 5 |
|
| 2 | [prep] [det] [det] than a year | 5 |
|
| 3 | [prep] [det] [det] than a year | 5 |
|
| 4 | not [det] [det] than a year | 5 |
|
| 5 | [not/n't] [det] [det] than a year | 5 |
|
| 6 | [adv] [det] [det] than a year | 5 |
|
| 7 | [det] [det] than a year [adv] | 6 |
|
| 8 | [det] [det] than a year [adv] | 6 |
|
