| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | than [adj] years [unc] [noun] | 31 |
|
| 2 | than three [noun pl] [unc] [noun] | 20 |
|
| 3 | than three [noun] [unc] [noun] | 20 |
|
| 4 | [conj] three years [unc] [noun] | 17 |
|
| 5 | [subord] three years [unc] [noun] | 10 |
|
| 6 | than three years [unc] [noun] | 10 |
|
| 7 | than three year [unc] [noun] | 10 |
|
