| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | twenty year ' [noun sg] | 37 |
|
| 2 | [prep] twenty year ' | 21 |
|
| 3 | [prep] year ' [noun sg] | 20 |
|
| 4 | [prep] twenty year [noun sg] | 10 |
|
