| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] years of [noun sg] | 278 |
|
| 2 | ten years of [noun sg] | 76 |
|
| 3 | [prep] ten years of | 50 |
|
| 4 | [prep] ten years [noun sg] | 32 |
|
