| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | for over [num] years | 557 |
|
| 2 | [adv prt] for [num] years | 122 |
|
| 3 | [adv prt] over [num] years | 82 |
|
| 4 | [adv prt] for over [num] | 14 |
|
