| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | after [adj] years of | 556 |
|
| 2 | after [num] years of | 465 |
|
| 3 | [prep] twenty years of | 28 |
|
| 4 | after twenty years [prep] | 16 |
|
| 5 | after twenty [noun] of | 12 |
|
| 6 | after twenty [noun pl] of | 12 |
|
| 7 | after twenty year of | 11 |
|
| 8 | after twenty years of | 11 |
|
