| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | of twenty year ['s] [noun sg] | 5 |
|
| 2 | of twenty year [unc] [noun sg] | 5 |
|
| 3 | of twenty years [unc] [noun sg] | 5 |
|
| 4 | of twenty year ' [noun sg] | 5 |
|
| 5 | of twenty year ' [noun sg] | 5 |
|
