| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] thirty years | 225 |
|
| 2 | [prep] years [pers pn] | 217 |
|
| 3 | thirty years [pers pn] | 22 |
|
| 4 | [prep] thirty [pers pn] | 8 |
|
