| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] three years | 1472 |
|
| 2 | [prep] years [pers pn] | 217 |
|
| 3 | three years [pers pn] | 131 |
|
| 4 | [prep] three [pers pn] | 44 |
|
