| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] 15 years | 284 |
|
| 2 | [prep] years [pers pn] | 217 |
|
| 3 | 15 years [pers pn] | 10 |
|
| 4 | [prep] 15 [pers pn] | 8 |
|
