| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [num] [prep] [adj] years | 959 |
|
| 2 | [num] [prep] [num] years | 923 |
|
| 3 | [num] [prep] eight [noun] | 229 |
|
| 4 | [num] [prep] eight [noun pl] | 190 |
|
| 5 | [adj] [prep] eight years | 31 |
|
| 6 | [num] [prep] eight years | 21 |
|
| 7 | [num] [prep] eight year | 21 |
|
