| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | than [num] years ' | 33 |
|
| 2 | than [adj] years ' | 33 |
|
| 3 | than [adj] years ' | 33 |
|
| 4 | than three years ' | 10 |
|
| 5 | than three years ' | 10 |
|
| 6 | than two years ' | 5 |
|
| 7 | than two years ' | 5 |
|
