| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] three years [unc] [noun] | 92 |
|
| 2 | after [adj] years [unc] [noun] | 91 |
|
| 3 | after three [noun pl] [unc] [noun] | 21 |
|
| 4 | after three [noun] [unc] [noun] | 21 |
|
| 5 | after three year [unc] [noun] | 12 |
|
