| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | three years [prep] | 916 |
|
| 2 | three [prep] [pers pn] | 881 |
|
| 3 | three years [pers pn] | 131 |
|
| 4 | years [prep] [pers pn] | 126 |
|
