| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] 10 years | 518 |
|
| 2 | [conj] 10 years | 110 |
|
| 3 | [conj] [prep] years | 88 |
|
| 4 | [conj] [prep] 10 | 86 |
|
