| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | ten years ' [noun sg] | 70 |
|
| 2 | [prep] ten years ' | 52 |
|
| 3 | [prep] ten years [noun sg] | 32 |
|
| 4 | [prep] years ' [noun sg] | 20 |
|
