| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to [adj] years [unc] [noun] | 183 |
|
| 2 | [prep] three years [unc] [noun] | 92 |
|
| 3 | to three [noun] [unc] [noun] | 37 |
|
| 4 | to three [noun pl] [unc] [noun] | 37 |
|
| 5 | to three year [unc] [noun] | 20 |
|
