| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for over [adj] years | 557 |
|
| 2 | for over [num] years | 557 |
|
| 3 | for [adv] 30 years | 70 |
|
| 4 | for [adv] 30 years | 70 |
|
| 5 | [prep] over 30 years | 53 |
|
| 6 | [prep] over 30 years | 53 |
|
| 7 | for over 30 [noun pl] | 46 |
|
| 8 | for over 30 [noun] | 46 |
|
| 9 | for over 30 year | 43 |
|
| 10 | for over 30 years | 43 |
|
| 11 | for over 30 years | 43 |
|
| 12 | for over 30 years | 43 |
|
