| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] ten years | 782 |
|
| 2 | [adv prt] [prep] ten | 713 |
|
| 3 | [adv prt] [prep] years | 149 |
|
| 4 | [adv prt] ten years | 10 |
|
