| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | twenty years of [pos pn] [noun sg] | 10 |
|
| 2 | twenty years of [pos pn] [noun] | 10 |
|
| 3 | twenty years of his [noun] | 9 |
|
| 4 | twenty years of [pos pn] life | 7 |
|
| 5 | twenty years of [pos pn] life | 7 |
|
