| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | period [prep] [adj] years | 346 |
|
| 2 | period [prep] [num] years | 327 |
|
| 3 | [noun] [prep] eight years | 135 |
|
| 4 | [noun sg] [prep] eight years | 107 |
|
| 5 | period [prep] eight [noun] | 11 |
|
| 6 | period [prep] eight [noun pl] | 10 |
|
| 7 | period [prep] eight years | 5 |
|
| 8 | period [prep] eight year | 5 |
|
| 9 | period [prep] eight years | 5 |
|
