| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] for [num] years | 623 |
|
| 2 | [noun] for over [num] years | 297 |
|
| 3 | [prep] [noun] over [num] years | 110 |
|
| 4 | [prep] [noun] for over [num] | 81 |
|
