| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] for the [num ord] twenty years | 21 |
|
| 2 | [noun sg] for the [num ord] twenty years | 15 |
|
| 3 | [noun] for the last twenty years | 12 |
|
| 4 | [noun] for the next twenty years | 9 |
|
| 5 | [noun pl] for the [num ord] twenty years | 5 |
|
