| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] two years ' | 14 |
|
| 2 | [coord] two years ' | 7 |
|
| 3 | [subord] two years ' | 6 |
|
| 4 | than two years ' | 5 |
|
| 5 | than two years ' | 5 |
|
